• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a rocker (15) with adjustable auxiliary heat compensation weights (13) for providing an adjustment of the heat compensation of the balance (15). The invention also relates to a resonator equipped with a compensating balance spring coupled to a balance according to the invention.
    公开号:CH712195A2
    申请号:CH00286/16
    申请日:2016-03-07
    公开日:2017-09-15
    发明作者:Zaugg Alain；Sarchi Davide
    申请人:Montres Breguet Sa；
    IPC主号:
    专利说明:

    Description
    FIELD OF THE INVENTION [0001] The invention relates to adjustable auxiliary thermal compensation weights and in particular such flyweights mounted on a balance wheel of a balance-spring resonator.
    BACKGROUND OF THE INVENTION [0002] It is explained in EP 1 422 436, incorporated by reference into the present application, how to form a compensating balance spring comprising a silicon core coated with silicon dioxide and cooperating with a balance wheel. predetermined inertia for thermally compensating the assembly of said resonator.
    [0003] Making such a compensating spring brings many advantages but retains the disadvantage common to all manufacturing. Indeed, the spiral ravage step in a silicon wafer offers a very small but not negligible geometrical dispersion in the form of a compensating hairspring to provide a similar step for each type of movement. SUMMARY OF THE INVENTION [0004] The object of the present invention is to overcome all or part of the aforementioned drawbacks by proposing a balance providing a thermal compensation adjustment for correcting the manufacturing dispersions of the elements of a balance-spring resonator. .
    For this purpose, the invention relates to a balance having a serge connected to a hub using at least one arm characterized in that the balance comprises auxiliary heat compensation auxiliary weights to offer an adjustment of the heat compensation of the balance.
    It is therefore understood that the adjustable auxiliary heat compensation weights are adaptable to a pendulum of a watch movement already developed and can individually compensate the dispersion specific to each movement to make for example a resonator balance-spiral even less sensitive temperature variations only with a compensating balance spring. Therefore, the adjustable auxiliary heat compensation weights do not do all the compensation but provide a means to refine the basic setting.
    According to other advantageous variants of the invention: - The auxiliary auxiliary heat compensation weights are mounted on the balance beam; the adjustable auxiliary heat compensation weights are mounted on the outer diameter of the balance beam, on the inner diameter of the balance beam, or comprise at least one assembly formed by a first counterweight mounted on the inner diameter of the balance beam. and a second flyweight mounted on the outer diameter of the balance beam; the adjustable auxiliary heat compensation weights comprise an adjustable positioning device in order to adapt the influence of the adjustable auxiliary heat compensation weights; - The adjustable positioning device comprises mechanical means for choosing the distance of the free end of the weights relative to the serge; - Adjustable auxiliary thermal compensation weights comprise at least one material whose expansion coefficient is greater than 10 10-6 K-1 so that the auxiliary auxiliary heat compensation weights vary the inertia of the balance depending on the temperature; the adjustable auxiliary thermal compensation weights comprise a first part comprising the adjustable positioning device making it possible to choose the distance of the free end of the weights from the serge and a second part mounted in the first part and comprising at least one material whose expansion coefficient is greater than 10-6 K-1 so that the adjustable auxiliary heat compensation weights vary the inertia of the balance as a function of temperature; said at least one material having a coefficient of expansion greater than 10 -6 K-1 comprises silver, magnesium, lead, thallium, nickel, copper, zinc, gold, aluminum, indium or vulcanite.
    In addition, the invention relates to a resonator comprising a compensating hairspring characterized in that the compensating hairspring is coupled to a pendulum according to one of the preceding variants.
    BRIEF DESCRIPTION OF THE DRAWINGS [0009] Other features and advantages will become clear from the description which is given hereinafter, by way of indication and in no way limitative, with reference to the accompanying drawings, in which: FIG. 1 is a partial representation of a watch movement according to the invention; figs. 2 to 4 are representations of three embodiments of adjustable auxiliary heat compensation weights according to the invention; figs. 5 and 6 are representations of two alternatives of the third embodiment of adjustable auxiliary heat compensation weights according to the invention; fig. 7 is a representation of a variant auxiliary auxiliary heat compensation weight adjustable according to the invention.
    Detailed Description of the Preferred Embodiments [0010] As shown in FIG. 1, a resonator 1, comprising a compensator spiral 3 of the silicon type coated with silicon dioxide and cooperating with a balance 5 of predetermined inertia, offers an unprecedented thermal compensation step in the field of mechanical timekeeping.
    However, the unpredictability of manufacturing and the fact that the compensating hairspring is not necessarily of the silicon type coated with silicon dioxide have prompted the Applicant to seek corrective solutions. It has thus become apparent that a need exists for an adjustable auxiliary thermal compensation system making it possible to adjust the thermal coefficient of a resonator over a range of ± 0.5 sj-1 · 0-1 that is adaptable to existing watch movements .
    The invention therefore proposes to modify a conventional balance such as, for example, having an uncut serge connected to a hub with the aid of at least one arm. According to the invention, the balance advantageously comprises auxiliary heat compensation weights adjustable to provide an adjustment of the heat compensation of the balance. Preferably, according to the invention, it has appeared simpler to integrate the auxiliary heat compensation weights that are adjustable on the balance rod.
    It is therefore understood that the adjustable auxiliary heat compensation weights can individually correct the thermal coefficient of each movement to make, for example, a sprung-balance resonator even less sensitive to temperature changes with a compensator spiral alone . Therefore, the adjustable auxiliary heat compensation weights do not do all the compensation but gives a way to refine the basic adjustment after manufacture or after-sales.
    According to a first embodiment illustrated in FIG. 2, there can be seen a rocker 15 having a serge 14 provided with adjusting screws 16 and connected to a hub 11 with the aid of four arms 12. The rocker 15 comprises, advantageously according to the invention, two adjustable auxiliary heat compensation weights 13 mounted on the outer diameter of the shank 14 of the balance 15 to provide an adjustment of the heat compensation of the balance 15.
    It is understood that the object is to provide a possibility of adjusting the variation of the inertia of the balance 15 in a predetermined manner as a function of temperature variations in order to correct the manufacturing dispersions of the elements of a resonator 1 rocker- spiral.
    In the first embodiment illustrated in FIG. 2, the adjustable auxiliary heat compensation weights 13 are mounted symmetrically on the outer diameter of the serge 14 with respect to the hub 11.
    To do this, the adjustable auxiliary heat compensation weights 13 comprise an adjustable positioning device 19 to adapt the influence of the auxiliary auxiliary heat compensation weights 13. In the example of FIG. 2, the adjustable positioning device 19 comprises mechanical means formed by sets threaded holes in the serge 14 - threads on the weights 13 to choose the distance of the free end of the weights 13 with respect to the serge 14. It is understood so that in the example of fig. 2, the flyweights 13 function substantially like the adjusting screws 16.
    According to the first embodiment illustrated in FIG. 2, the adjustable auxiliary heat compensation weights 13 comprise one (or more) material (s) whose expansion coefficient is greater than 10 -6 K -1 so that the adjustable auxiliary heat compensation weights 13 can vary the inertia of the balance 15 depending on the temperature.
    [0019] Said at least one material whose expansion coefficient is greater than 10 K-1 TCT may thus comprise silver, magnesium, lead, thallium, nickel, copper, zinc, gold, aluminum, indium or vulcanite.
    It is therefore understood that by adjusting the penetration of the auxiliary auxiliary heat compensation weights 13 in the serge 14, it is possible to choose a predetermined correction of the inertia of the balance 15 as a function of temperature variations.
    Of course, the present invention is not limited to the example shown but is susceptible to various variations and modifications that will occur to those skilled in the art. In particular, the balance 15 may also be of different geometry, for example, with more or fewer arms 12, with a serge 14 cut, with a serge 14 with two concentric rings integral or with a serge 14 formed of several curved lobes . The rocker 15 may further comprise a greater number of weights 13 of adjustable auxiliary thermal compensation. Similarly, the weights 13 could also be of different geometry and / or comprise one (or more) different material (s) and / or an adjustable positioning device 19 different according to the desired range of adjustment of the thermal coefficient.
    For example, a variant flyweight 61 of adjustable auxiliary heat compensation is shown in FIG. 7. The weight 61 comprises a first portion 63 for attachment to the serge 14 of the balance 15 and a second portion 65 of thermal compensation adjustment. It is thus understood that the first part 63 does not have to be formed from a material whose expansion coefficient is greater than 1 CT6 K-1. Indeed, the second portion 65 may be the only one to be formed from a material whose expansion coefficient is greater than 1CT6 K-1.
    Thus, according to the example of FIG. 7, the first fastening portion 63 comprises a tubular body provided with a thread 62 and a collar 64. The thread 62 is intended to cooperate with a corresponding thread formed in the serge 14 of the balance 15. It is understood that the thread 62 forms an adjustable positioning device such as that explained above, and allows the first part 63 to choose the distance from the free end of the weights 61 with respect to the serge 14.
    In addition, according to the example of FIG. 7, the second heat compensation part 65 comprises a rod 67 received in the tubular body of the first part. Preferably, the rod 67 comprises a thread 66 intended to cooperate with the end 68 of the first part 63 in order to adjust the depression of the rod 67 in the tubular body of the first part 63. However, alternatively, the rod 67 could more simply be fitted in the first part 63. At the end of the rod 67 opposite that receiving, preferably, the thread 62, the second portion 65 comprises a block 69 for maximizing the compensation effect of the weight 61.
    Therefore, the variant of feeder 61 of adjustable auxiliary thermal compensation shown in FIG. 7 can be set at the depression of the first part 63 in the serge 14 and, preferably, by the depression of the second part 65 in the first part 63 in order to precisely choose the distance of the block 69 from the weights 61 by relative to the serge 14. Of course, if the second portion 65 is fitted in the first portion 63, the adjustment will be made only by the depression of the first portion 63 in the serge 14.
    According to a second embodiment illustrated in FIG. 3, there can be seen a rocker 25 having a serge 24 provided with adjusting screws 26 and connected to a hub 21 by means of four arms 22. The rocker 25 comprises, advantageously according to the invention, two auxiliary heat compensation weights adjustable 23 mounted on the inner diameter of the shank 24 of the balance 25 to provide an adjustment of the heat compensation of the balance 25. Note that this second embodiment offers the advantage of not requiring additional space as for the first embodiment.
    It is understood that the purpose is to provide a possibility of adjusting the variation of the inertia of the balance 25 in a predetermined manner as a function of temperature variations in order to correct the manufacturing dispersions of the elements of a resonator 1-balance- spiral.
    In the second embodiment illustrated in FIG. 3, the adjustable auxiliary thermal compensation weights 23 are mounted symmetrically on the internal diameter of the shank 24 with respect to the hub 21.
    To do this, the adjustable auxiliary heat compensation weights 23 comprise an adjustable positioning device 29 in order to adapt the influence of the adjustable auxiliary heat compensation weights 23. In the example of FIG. 3, the adjustable positioning device 29 comprises mechanical means formed by sets threaded holes in the serge 24 - threads on the weights 23 to choose the distance of the free end of the weights 23 with respect to the serge 24. It is understood so that in the example of fig. 3, the flyweights 23 function substantially inversely to the adjusting screws 26.
    According to the second embodiment illustrated in FIG. 3, the adjustable auxiliary thermal compensation weights 23 comprise one (or more) material (s) whose expansion coefficient is greater than 1010 "6 K" 1 so that the adjustable auxiliary heat compensation weights 23 can vary the inertia of the pendulum 25 depending on the temperature.
    Said at least one material whose expansion coefficient is greater than 10 10 -6 K -1 can thus comprise silver, magnesium, lead, thallium, nickel, copper, zinc, gold, aluminum, indium or vulcanite.
    It is therefore understood that by adjusting the penetration of the auxiliary auxiliary heat compensation weight 23 in the serge 24, it is possible to choose a predetermined correction of the inertia of the balance 25 as a function of temperature variations.
    Of course, the present invention is not limited to the example shown but is susceptible to various variations and modifications that will occur to those skilled in the art. In particular, the balance 25 may also be of different geometry, for example, with more or fewer arms 22, with a serge 24 cut, with a serge 24 with two concentric rings integral or with a serge 24 formed of several curved lobes . The rocker 25 may further comprise a greater number of auxiliary auxiliary heat compensation weights 23. Similarly, the weights 23 could also be of different geometry and / or comprise one (or more) different material (s) and / or an adjustable positioning device 29 different according to the desired range of adjustment of the thermal coefficient. By way of example, one or more weights 23 could be modified according to the variant presented in FIG. 7.
    According to a third embodiment illustrated in FIG. 4, there can be seen a rocker 35 having a serge 34 provided with adjusting screws 36 and connected to a hub 31 by means of four arms 32. The rocker 35 comprises, advantageously according to the invention, two adjustable auxiliary heat compensation weights which comprise at least one assembly 37 formed by a first weight 33 mounted on the inner diameter of the strut 34 of the balance 35 and a second weight 38 mounted on the outer diameter of the strut 34 of the balance 35. Note that this third mode of realization makes it possible to maintain the same inertia at ambient temperature by allowing compensation by the conjugate displacement of the first and second flyweights 33, 38 towards the serge 34 or, on the contrary, away from the serge 34.
    It is understood that the object is to provide a possibility of adjusting the variation of the inertia of the balance 35 in a predetermined manner as a function of temperature variations in order to correct the manufacturing dispersions of the elements of a resonator 1 rocker- spiral.
    In the third embodiment illustrated in FIG. 4, the adjustable auxiliary heat compensation weights 33, 38 are mounted symmetrically on each side of the serge 34.
    To do this, the auxiliary auxiliary heat compensation weights 33, 38 comprise an adjustable positioning device 39 to adapt the influence of the auxiliary auxiliary heat compensation weights 33, 38. In the example of FIG. 4, the adjustable positioning device 39 comprises mechanical means formed by sets threaded holes in the serge 34 - threads on the weights 33, 38 for choosing the distance of the free end of the weights 33, 38 relative to the serge 34. It is therefore clear that in the example of FIG. 4, the weights 33, 38 operate substantially oppositely so as not to interfere with inertia at room temperature.
    For this reason, advantageously according to the invention, it is understood in a variant of the third embodiment, an alternative adjustable positioning device could be implemented to move at the same time said at least one set 37 in order to jointly move the two flyweights 33, 38 to the serge 34 or, conversely, away from the serge 34. Such a reciprocating adjustable positioning device could consist of a single double screw to move away or simultaneously bring the weights 33, 38.
    According to the third embodiment illustrated in FIG. 4, the adjustable auxiliary thermal compensation weights 33, 38 comprise one (or more) material (s) whose expansion coefficient is greater than 10 10 -6 K -1 so that the auxiliary auxiliary heat compensation weights 33, 38 can be used. vary the inertia of the balance 35 according to the temperature.
    Said at least one material whose expansion coefficient is greater than 10 10 -6 K-1 may thus comprise silver, magnesium, lead, thallium, nickel, copper, zinc, gold, aluminum, indium or vulcanite.
    It is therefore understood that by adjusting the penetration of the auxiliary auxiliary heat compensation weights 33, 38 in the serge 34, it is possible to choose a predetermined correction of the inertia of the balance 35 as a function of temperature variations.
    Of course, the present invention is not limited to the example shown but is susceptible to various variations and modifications that will occur to those skilled in the art. In particular, the balance 35 may also be of different geometry, for example, with more or fewer arms 32, with a cut serge 34, with a serge 34 with two concentric rings integral or with a serge 34 formed of several curved lobes . Similarly, the weights 33, 38 could also be of different geometry and / or comprise one (or more) different material (s) and / or an adjustable positioning device 39 different according to the desired range of adjustment of the coefficient. thermal. By way of example, one or more weights 33, 38 could be modified according to the variant shown in FIG. 7.
    According to first and second alternatives, the rocker 35 could have a greater number of assemblies 37 of adjustable auxiliary heat compensation weights 33, 38.
    According to the first alternative illustrated in FIG. 5, there can be seen a rocker 45 having a serge 34 provided with adjusting screws 36 and connected to a hub 31 by means of four arms 32. The rocker 45 advantageously comprises two sets 37-, 372 according to the invention. formed respectively by a first feeder 33- ,, 332 mounted on the inner diameter of the shank 34 of the balance 45 and a second flyweight 38i, 382 mounted on the outer diameter of the shank 34 of the balance 45. It can be seen that the two sets 37-i, 372 are mounted symmetrically on the serge 34 relative to the hub 31.
    Note that this first alternative of the third embodiment makes it possible to better balance the rocker 45 with respect to the rocker 35 of FIG. 4 while maintaining the same inertia at room temperature and allowing compensation by the combined displacement of the first and second flyweights 33 ,, 332, 38 ,, 382 to the serge 34 or, conversely, deviating from the serge 34 .
    It is understood that the purpose is to provide a possibility, with the same advantages as those explained for fig. 4, to adjust the variation of the inertia of the balance 45 in a predetermined manner as a function of the temperature variations in order to correct the manufacturing dispersions of the elements of a balance spring-balance resistor. Thus, by regulating the penetration of
    权利要求:
    Claims (11)
    [1]
    Adjustable auxiliary thermal compensation weights 33 ^ 332, 38 ^ 382 in the serge 34, it is possible to choose a predetermined correction of the inertia of the balance 45 as a function of temperature variations. Of course, the present invention is not limited to the illustrated example but is susceptible of various variations and modifications that will occur to those skilled in the art. In particular, the balance 45 may also be of different geometry, for example, with more or fewer arms 32, with a serge 34 cut, with a serge 34 with two concentric rings integral or with a serge 34 formed of several curved lobes . Similarly, the weights 33-1, 332, 38-1, 382 could also be of different geometry and / or comprise one (or more) different material (s) and / or an adjustable positioning device 39 392 different according to the desired range of adjustment of the thermal coefficient. By way of example, one or more weights 33-i, 332, 38-i, 382 could be modified according to the variant shown in FIG. 7. According to the second alternative illustrated in FIG. 6, there can be seen a rocker 55 having a serge 34 provided with adjusting screws 36 and connected to a hub 31 by means of four arms 32. The rocker arm 55 advantageously comprises four sets 37 372 373 , 374 respectively formed by a first feeder 33- |, 332, 333, 334 mounted on the inner diameter of the shank 34 of the balance 55 and a second flyweight 38-i, 382, 383, 384 mounted on the outer diameter of the serge 34 of the balance 55. It can be seen that the four assemblies 37-i, 372, 373, 374 are mounted symmetrically on the serge 34 relative to the hub 31. [0049] It is noted that this second alternative of the third embodiment makes it possible to more thermally influence the balance 55 relative to the balance 45 of FIG. 5 while maintaining the same inertia at room temperature and allowing compensation by the conjugate displacement of the first and second flyweights 33i, 332, 333, 334, 38-I, 382, 383, 384 towards the serge 34 or, conversely, departing from the serge 34. It is understood that the purpose is to offer a possibility, with the same advantages as those explained for figs. 4 and 5, to adjust the variation of the inertia of the balance 55 in a predetermined manner as a function of temperature variations in order to correct the manufacturing dispersions of the elements of a resonator 1 balance spring. Thus, by adjusting the penetration of the auxiliary auxiliary heat compensation weights 33 · ,, 332, 333, 334, 38 · ι, 382, 383, 384 in the serge 34, it is possible to choose a predetermined correction of the inertia of the pendulum 55 as a function of temperature variations. Of course, the present invention is not limited to the illustrated example but is susceptible to various variations and modifications that will occur to those skilled in the art. In particular, the balance 55 may also be of different geometry, for example, with more or fewer arms 32, with a cut serge 34, with a serge 55 with two concentric rings integral or with a serge 34 formed of several curved lobes . Similarly, the weights 33 · ,, 332, 333,334, 38 · ,, 382,383, 384 could also be of different geometry and / or comprise one (or more) different material (s) and / or an adjustable positioning device 39-i, 392, 393, 394 different according to the desired range of adjustment of the thermal coefficient. By way of example, one or more weights 33 ·, 332, 333, 334, 38 · ι, 382, 383, 384 could be modified according to the variant shown in FIG. 7. Claims
    A beam (5, 15, 25, 35, 45, 55) having a serge (14, 24, 34) connected to a hub (11, 21, 31) by means of at least one arm (12, 22, 32) characterized in that the rocker arm (5, 15, 25, 35, 45, 55) comprises counterweights (13, 23, 33, 38, 33, 38, 332, 382, 333, 383 , 334, 384) adjustable auxiliary heat compensation to provide a setting of the heat compensation of the balance (5, 15, 25, 35, 45, 55).
    [2]
    2. Pendulum (5,15, 25, 35, 45, 55) according to the preceding claim, characterized in that the flyweights (13, 23, 33, 38, 33-I, 38-I, 332, 382, 333, 383, 334, 384) are mounted on the strut (14, 24, 34) of the balance (5, 15, 25, 35, 45, 55).
    [3]
    3. Pendulum (5,15, 25, 35, 45, 55) according to the preceding claim, characterized in that the flyweights (13, 23, 33, 38, 33-I, 38-I, 332, 382, 333, 383, 334, 384) are mounted on the outer diameter of the strut (14, 24, 34) of the balance (5, 15, 25, 35, 45, 55).
    [4]
    4. Pendulum (5, 15, 25, 35, 45, 55) according to claim 2, characterized in that the weights (13, 23, 33, 38, 33 · ,, 38-I, 332, 382, 333, 383, 334, 384) are mounted on the inner diameter of the strut (14, 24, 34) of the balance (5, 15, 25, 35, 45, 55).
    [5]
    5. Pendulum (5, 15, 25, 35, 45, 55) according to claim 2, characterized in that the weights (13, 23, 33, 38, 33i, 38-I, 332, 382, 333, 383, 334, 384) comprise at least one assembly formed by a first weight mounted on the internal diameter of the strut (14, 24, 34) of the balance (5, 15, 25, 35, 45, 55) and a second weight mounted on the outer diameter of the strut (14, 24, 34) of the balance (5, 15, 25, 35, 45, 55).
    [6]
    6. Pendulum (5, 15, 25, 35, 45, 55) according to one of the preceding claims, characterized in that the weights (13, 23, 33, 38, 33- |, 38- |, 332, 382 , 333, 383, 334, 384) of adjustable auxiliary heat compensation comprise an adjustable positioning device (19, 29, 39, 39 ·, 392, 393, 394) in order to adapt the influence of the weights (13, 23 , 33, 38, 33-I, 38 ·, 332, 382, 333, 383, 334, 384).
    [7]
    7. Pendulum (5, 15, 25, 35, 45, 55) according to the preceding claim, characterized in that the adjustable positioning device (19, 29, 39, 39, 392, 393, 394) comprises mechanical means allowing to choose the distance of the free end of the weights (13,23,33,38,33 - ,, 38- ,, 332,382,333,383,334,384) compared to the serge (14,24,34).
    [8]
    8. Pendulum (5, 15, 25, 35, 45, 55) according to one of the preceding claims, characterized in that the weights (13, 23, 33, 38, 33 ,, 38 ,, 332, 382, 333 , 383, 334, 384) of adjustable auxiliary thermal compensation comprise at least one material whose coefficient of expansion (a) is greater than 10 "to 6 K" 1 so that the weights (13, 23, 33, 38, 33, , 38, 332, 382, 333, 383, 334, 384) adjustable auxiliary heat compensation vary the inertia of the balance (5, 15, 25, 35, 45, 55) depending on the temperature.
    [9]
    9. Pendulum (5, 15, 25, 35, 45, 55) according to claim 6, characterized in that the weights (13, 23, 33, 38, 33 ,, 38 ,, 332, 382, 333, 383, 334, 384) comprise a first portion (63) comprising the adjustable positioning device (19, 29, 39, 39, 392, 393, 394) for selecting the distance from the free end of the flyweights. (13, 23, 33, 38, 33, 38, 332, 382, 333, 383, 334, 384) relative to the serge (14, 24, 34) and a second portion (65) mounted in the first portion (63) and comprising at least one material having a coefficient of expansion greater than 10 10-6 K -1 so that the weights (13, 23, 33, 38, 33, 38, 332, 382, 333, 383, 334, 384) adjust the inertia of the balance (5, 15, 25, 35, 45, 55) as a function of the temperature.
    [10]
    10. Pendulum (5, 15, 25, 35, 45, 55) according to claim 8 or 9, characterized in that said at least one material whose expansion coefficient is greater than greater than 10 -6 K-1 comprises silver, magnesium, lead, thallium, nickel, copper, zinc, gold, aluminum, indium or vulcanite.
    [11]
    11. Resonator (1) comprising a balance spring (3) characterized in that the balance spring (3) is coupled to a rocker arm (5, 15, 25, 35, 45, 55) according to one of the preceding claims.
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    同族专利:
    公开号 | 公开日
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    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    CH00286/16A|CH712195B1|2016-03-07|2016-03-07|Balance wheel with adjustable auxiliary thermal compensation weights.|CH00286/16A| CH712195B1|2016-03-07|2016-03-07|Balance wheel with adjustable auxiliary thermal compensation weights.|
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