EP4180881A1 - Vorrichtung zur anzeige einer folge von zeitgrössenangaben für eine uhr - Google Patents

Vorrichtung zur anzeige einer folge von zeitgrössenangaben für eine uhr Download PDF

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Publication number
EP4180881A1
EP4180881A1 EP22200908.6A EP22200908A EP4180881A1 EP 4180881 A1 EP4180881 A1 EP 4180881A1 EP 22200908 A EP22200908 A EP 22200908A EP 4180881 A1 EP4180881 A1 EP 4180881A1
Authority
EP
European Patent Office
Prior art keywords
succession
indications
indicator
displaying
reference position
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP22200908.6A
Other languages
English (en)
French (fr)
Inventor
Fabrice Rochat
Polychronis Nakis Karapatis
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Montres Breguet SA
Original Assignee
Montres Breguet SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Montres Breguet SA filed Critical Montres Breguet SA
Publication of EP4180881A1 publication Critical patent/EP4180881A1/de
Pending legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B19/00—Indicating the time by visual means
    • G04B19/24—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars
    • G04B19/243—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator
    • G04B19/247—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator disc-shaped
    • G04B19/253—Driving or releasing mechanisms
    • G04B19/25333—Driving or releasing mechanisms wherein the date indicators are driven or released mechanically by a clockwork movement
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B19/00—Indicating the time by visual means
    • G04B19/24—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars
    • G04B19/243—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator
    • G04B19/247—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator disc-shaped
    • G04B19/25—Devices for setting the date indicators manually
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B19/00—Indicating the time by visual means
    • G04B19/26—Clocks or watches with indicators for tides, for the phases of the moon, or the like
    • G04B19/268—Clocks or watches with indicators for tides, for the phases of the moon, or the like with indicators for the phases of the moon
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B19/00—Indicating the time by visual means
    • G04B19/02—Back-gearing arrangements between gear train and hands
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B19/00—Indicating the time by visual means
    • G04B19/24—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B27/00—Mechanical devices for setting the time indicating means

Definitions

  • the present invention relates to a device for displaying a succession of indications of a time quantity for a timepiece. More specifically, the present invention is concerned with such a device for displaying a succession of indications of a time quantity equipped with a display correction device.
  • the present invention relates to devices for displaying a succession of indications of a temporal magnitude such as moon phase display devices or even week display devices which are fitted to parts of horology, in particular of the wristwatch type, the correction of which requires or is facilitated by prior resetting.
  • the correction of a device for displaying the phases of the moon requires the counting of the days elapsed since the last full moon, while the correction of a device for displaying the weeks, also called week , which displays a number of weeks that may differ from year to year, is facilitated by a reset at the beginning of the year.
  • a moon phase display device makes it possible to display the different phases of the Moon (new moon, 1 st crescent, 1 st quarter, waxing gibbous moon, full moon, waning gibbous moon, last quarter and last crescent) which succeed during a lunar month whose duration between two consecutive new Moons is 29 days, 12 hours, 44 minutes and 2.8 seconds.
  • this duration also called lunation, is rounded to 29.5 days and usually progresses by 1 step per day.
  • the correction of a moon phase display device is therefore also done in steps of 1 day, and the correction method usually recommended to the customer is to bring the display to an easily determinable reference position, the full moon for example, by manipulating a day-to-day corrector, then to count the number of days separating the full moon from the age of the moon on the given day, and finally to bring the moon phase display back to the appropriate position in steps of 1 day using the day-to-day corrector. It is therefore understood that the correction of a moon phase display device may require 29 corrections to bring this device to the position in which it displays the full moon, then up to 29 additional corrections to bring the device to the position corresponding to the age of the moon on the given day.
  • a device for displaying the weeks also called a weekly planner, counts the weeks that have passed over the year.
  • Such a week display device comprises, depending on the construction, a display from 1 to 53 with a needle or a single window by means of a single disc, or a display from 00 to 59 of the “large window” type with a display units (0-9) by means of a first disc and a display of tens (0-5) by means of a second disc.
  • the correction procedure usually recommended to the customer is to bring the week display device to its initial position, that is to say to position 1. needle or single-window display, correction is easy.
  • there is no process for correcting the display making it possible to return instantly to position 01 without having to go through positions from 54 to 00 in the case of a display of the type "big box".
  • the object of the present invention is to solve the problems mentioned above as well as others still by proposing a device for displaying a succession of indications of a time quantity for a timepiece whose correction of the display is facilitated.
  • the present invention relates to a device for displaying a succession of indications of a temporal quantity for a timepiece, this display device comprising an indicator which bears the succession of indications of the temporal quantity to be displayed or else which points to this succession of indications of the temporal quantity to be displayed, this indicator being arranged to be driven by a clockwork movement so as to move from an initial position to a final position by passing through a succession of intermediate positions in which the display of the time quantity passes from one indication to the following indication at a required frequency, the display device also comprising a mechanism for setting the indicator to a reference position and a device actuating mechanism, the reference position setting mechanism comprising at least one cam on which, when actuated, the actuating device acts so that the reference position setting mechanism returns the indicator to its position predetermined reference in order to facilitate a subsequent correction of the indication of the time quantity displayed.
  • the cam is a heart or a snail whose positioning, relative to the indicator, determines the predetermined reference position of the indicator.
  • the mechanism for setting a reference position comprises a hammer, the hammer being arranged so that, once actuated by means of the actuating device, it comes into an active position in contact with the core or the snail, so as to cause the indicator to pivot and bring it back to its predetermined reference position.
  • the core or the snail is mounted fixed on the indicator.
  • the cam is a heart or a snail arranged to be fixedly mounted on a frame of the timepiece and the mechanism for setting a reference position comprises a hammer mounted on the indicator.
  • the actuating device for actuating the hammer, comprises a push-button which acts against the elastic force of a spring arranged to hold the hammer moved away from an active position in contact with the heart or the snail.
  • the indicator is a moon phase wheel with 59 teeth which bears two moon indications and which is driven by the clock movement at the rate of one step per day.
  • the predetermined reference position of the moon phase wheel corresponds to the full moon display position.
  • the indicator is a wheel for displaying the weeks of the year with 53 teeth which carries an indicator hand which moves next to a scale bearing the numbers of the weeks from 1 to 53.
  • the reference position of the wheel for displaying the weeks of the year corresponds to the display of week 01.
  • the device for displaying a succession of indications of a temporal magnitude is a large window and comprises a unit display assembly for displaying the units of the numbers of the week, and a tens display assembly for displaying the tens of the week numbers.
  • the units display assembly comprises a units disc on which are reported the units of the numbers of the week from 0 to 9 and which is fixed on a star of the units which has 10 teeth
  • the tens display assembly comprises a tens disc on which are reported the tens of the numbers of the week from 0 to 5 and which is fixed on a tens star which has 6 teeth
  • the mechanism for setting a reference position comprising a heart or a snail arranged to be fixedly mounted under each of the stars of the units and tens
  • the actuating mechanism comprises a hammer which falls on the hearts or the snails and causes the pivoting the units disc and the tens disc simultaneously to bring the latter back to their predetermined reference position.
  • the predetermined reference position of the units disc and of the tens disc corresponds to the display of the indication “01”.
  • the setting to the reference position of the indicator which carries the succession of indications of the time quantity to be displayed or which points to the succession of indications of the time quantity to be displayed is controlled by action of the user, for example on a first push-button, while a second push-button is arranged to ensure the step-by-step correction of the indicator, independently of the first push button.
  • the setting in the reference position of the indicator which bears the succession of indications of the temporal quantity or which points to the succession of indications of the temporal quantity to be displayed done automatically during a first action on a push-button which is arranged to control the step-by-step correction of the indicator during a second action on this same push-button.
  • the driving, the correction and the resetting to the reference position of the indicator which bears the succession of indications of the time quantity to be displayed or which points to the succession of indications of the temporal magnitude to be displayed are ensured by a wolf-tooth rake
  • the driving and correction of the indicator being carried out by driving the wolf-tooth rake by one tooth, the recoil of which is prevented by a pawl
  • the reset from the indicator to the reference position being ensured by actuation of the pawl which releases the wolf-tooth rake, the latter returning to its rest position under the action of a return spring in which the pawl comes into engagement with a tooth provided at the end of this wolf-tooth rake.
  • the present invention also relates to a timepiece comprising at least one device for displaying a succession of indications of a time quantity to be displayed, equipped with a mechanism for setting a reference position of an indicator which bears the succession of indications of the temporal quantity to be displayed or else which points to this succession of indications of the temporal quantity to be displayed.
  • the timepiece comprises several display devices, these are arranged so as to be able to be returned simultaneously to the reference position by the same and single action by the user on a single push-button.
  • the present invention provides a device for displaying a succession of indications of a time quantity for a timepiece comprising a mechanism for its instantaneous reset to a reference position at the request of the user or automatically during each first correction.
  • the display device can be returned to its initial position by simple actuation of a hammer which acts on a cam integral with the indicator which carries the succession of indications of the temporal quantity to be displayed or else which points to this succession of indications of the temporal quantity to be displayed in order to return this indicator to its initial position.
  • the display device according to the invention is used for example to display the phases of the moon
  • the tedious operation which consists in exercising, depending on the day on which the timepiece stopped, from 1 to 30 pressures on a push-button to return a conventional moon phase display device to the position corresponding to the beginning of the lunar month is thus avoided.
  • the mechanism for setting the reference position comprises a heart
  • the correction of the display device can be done in both directions of rotation.
  • the correction of the display device is always done in the same direction of rotation, which proves to be particularly advantageous, in particular in the case of a device for displaying weeks of the "large window” type with a display of the units (0-9) by means of a first disc and a display of the tens (0-5) by means of a second disc.
  • a device for displaying weeks of the "large window” type with a display of the units (0-9) by means of a first disc and a display of the tens (0-5) by means of a second disc.
  • the present invention proceeds from the general inventive idea which consists in equipping a display device with a succession of indications of a temporal magnitude such as the phases of the moon or the weeks of the year with a setting mechanism to a reference position making it possible to instantly bring back the indicator which carries the succession of indications or else which points to this succession of indications in its initial position by simple action on a hammer which acts on a cam integral with the indicator.
  • a display device with a succession of indications of a temporal magnitude such as the phases of the moon or the weeks of the year with a setting mechanism to a reference position making it possible to instantly bring back the indicator which carries the succession of indications or else which points to this succession of indications in its initial position by simple action on a hammer which acts on a cam integral with the indicator.
  • the device for displaying a succession of indications of a temporal quantity for displaying the phases of the moon.
  • the device for displaying a succession of indications of a temporal magnitude comprises a moon phase indicator 2.
  • this moon phase indicator 2 is a moon phase wheel 3 with 59 teeth which carries two moon indications 4a and 4b to display the moon phases through an aperture made in a dial of the timepiece (not shown) in which the device 1 for displaying a succession of indications of a time quantity according to the invention is on board.
  • This moon phase wheel 3 is driven at the rate of one step per day by a drive finger 6 fixedly mounted on a 24-hour wheel 8 itself driven by an hour wheel 10 at the rate of a complete revolution per day.
  • This moon phase wheel 3 is held in position by a spring jumper 12 elastically constrained by a first spring 14.
  • the device 1 for displaying a succession of indications of a temporal magnitude also comprises a correcting lever 16 which, in normal time, is kept away from the moon phase wheel 3 by the action of a second spring 18.
  • This corrector lever 16 is arranged to advance the moon phase wheel 3 step by step and allow the correction of the moon phase display when the user of the timepiece actuates a first push-button 20.
  • the device 1 for displaying a succession of indications of a temporal magnitude is equipped with a mechanism for setting a reference position 22 which comprises a cam, for example in the shape of a heart 24, mounted fixed on an underside 26 of the wheel of the moon phases 3.
  • This heart 24 has an indexing face 28 by which it cooperates with a hammer 30 which is kept elastically separated from its active position in contact with the indexing face 28 of the heart 24 by a third spring 32.
  • a second push-button 34 the user acts on the hammer 30 against the elastic force of the third spring 32, the hammer 30 falls on the heart 24 and causes the latter to pivot until until this hammer 30 finds itself in stable support on the indexing face 28 of the heart 24.
  • the position of the heart 24 relative to the moon phase wheel 3 is adjusted so that, when the hammer 30 falls on the heart 24, the moon phase wheel 3 is returned to its reference position, preferably to the full moon display position.
  • the heart 24 of the mechanism for setting a reference position 22 is replaced by a spiral 36.
  • the mechanism for setting a reference position 22 remains unchanged.
  • the moon phase wheel 3 will turn in direction or the other, until the hammer 30 comes to rest on the indexing face 28.
  • the moon phase wheel 3 will always turn in the direction same direction, regardless of where in the profile of the spiral 36 the hammer 30 falls, and will stop when the hammer 30 comes to rest on the end 38 of the spiral 40 of the spiral 36.
  • the display device is provided to display the weeks of the year.
  • a device for displaying the weeks of the year comprises an indicator of the weeks of the year.
  • this indicator of the weeks of the year is a wheel for displaying the weeks of the year 44 to 53 teeth which carries a hand indicator 46 which moves next to a scale bearing the numbers of the weeks from 1 to 53 (see figure 4 And 5 ).
  • the mechanism for setting a reference position 22 of the wheel for displaying the weeks of the year 44 remains unchanged.
  • the 44-week-of-the-year display wheel is driven one step per week.
  • the wheel for displaying the weeks of the year 44 is brought back to its reference position in which the indicator hand 46 preferentially points to the indication of the week of the year number 1, this wheel displaying the weeks of the year 44 always turns in the same direction thanks to the use of the spiral 36.
  • the use of the spiral 36 is particularly advantageous in the case where the indicator hand 46 does not make a complete turn to display the weeks of the year. Indeed, it can be provided that the display of the weeks from 1 to 53 is carried out for example only on an angular sector of 270° between 1:30 and 10:30 a.m., this in order to avoid overloading the dial at noon. where the indication "12" is usually underlined by a larger or thicker display.
  • the return of the indicator hand 46 to its reference position by means of the spiral 36 makes it possible to rotate this indicator hand 46 in the opposite direction to that in which it rotates to display the numbers of the weeks from 1 to 53 , so that the risk of causing the indicator hand 46 to pass through the sector of the dial where the indication "12" is shown is avoided.
  • the display device provided for displaying the weeks of the year is of the “large window” type.
  • the “large window” display device comprises a units display assembly 50 and a tens display assembly 51.
  • the 50 units display set includes a 52 units disc on which the week number units are plotted from 0 to 9. This disc of units 52 is fixed on a spider of units 54 which has 10 teeth. The position of this unit star 54 is indexed by a unit jumper 56. This unit star 54 is trained at the rate of one step per week by a unit trainer finger 58.
  • the unit display assembly 50 comprises also a tens trainer finger 60 attached to the units star 54 and which increments the tens display assembly 51 by one step every end of 9 weeks.
  • the tens display assembly 51 comprises a tens disc 62 on which are reported the tens of the numbers of the week from 0 to 5.
  • This tens disc 62 is fixed on a tens star 64 which counts 6 teeth. The position of this 64 tens star is indexed by a 66 tens jumper. tens 64 via the tens 60 trainer finger.
  • the "large aperture" display device 48 is completed by a corrector lever 68 which, by action of the user on a push-button 70, makes it possible to advance the star of the units 54 by one step each time the this push button 70.
  • the "large window" display device 48 is equipped with a mechanism for setting a reference position 72 which comprises two cams, for example in the form of a spiral 74, fixedly mounted under each of the stars units 54 and tens 64. These spirals 74 each have a spiral profile 76 by which they cooperate with one of the actuating faces 78 of a hammer 80 which is kept elastically separated from its active position in contact with these spirals 74 by a spring 82.
  • the user acts on the hammer 80 against the elastic force of the spring 82, the hammer 80 falls on the spirals 74 and causes the pivoting of the latter until this hammer 80 finds itself in stable support on the end 86 of the spiral profiles 76 of the snails 74.
  • the position of the snails 74 relative to the stars of the units 54 and tens 64 is adjusted so that, when the hammer 80 falls on the snails 74, the discs of the units 52 and tens 62 are returned to their reference position , preferably the one in which they display the indication "01".
  • the units 52 and tens 62 discs will always turn in the same direction, regardless of where in the profile of the snails 74 the hammer 80 falls, and s will stop when the hammer 80 comes to rest on the end 86 of the spiral profiles 76 of the snails 74.
  • This is particularly advantageous insofar as, by forcing the correction of the display of units and the display of tens in the opposite direction of rotation to that of the normal display of the numbers of the weeks, it is avoided that the “large window” display device 48 briefly displays the numbers of the weeks 54 to 59 which do not exist.
  • the driving, the correction and the reset to the reference position of an indicator for example of the type of an indicator hand 88 which points to the succession of indications of the temporal quantity to be displayed, in this case a succession of 15 days, are provided by a wolf-tooth rake 90 held in position by a first return spring 92 and whose movements are controlled by a corrector lever 94 held in position by a second return spring 96.
  • the drive and the step-by-step correction of the indicator hand 88 are carried out by driving the wolf-tooth rake 90 by one tooth each time by means of the corrector lever 94 by exerting on the latter a force according to the arrow F1 .
  • the recoil of the wolf tooth rake 90 is prevented by a pawl 98 held in position by a third return spring 100.
  • the return of the indicator needle 88 to its reference position is controlled by the user who actuates the pawl 98 according to the arrow F2 , which has the effect of disengaging the pawl 98 from the teeth of the wolf-tooth rake 90 and therefore to release the wolf-tooth rake 90.
  • the wolf-tooth rake 90 Under the action of its return spring 92, the wolf-tooth rake 90 will thus be able to return to its rest position in which the pawl 98 engages a tooth 102 provided at the end of this wolf-tooth rake 90.
  • a timepiece can be fitted with several devices for displaying a succession of indications of a time quantity, each fitted with a mechanism for setting a reference position in accordance with the invention. , and that all of these display devices are simultaneously returned to the reference position by the same and unique user action on a single push-button.
  • the moving elements such as the corrector levers are shown in dotted lines in their rest position, and in solid lines in their active position.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • Electromechanical Clocks (AREA)
  • Displays For Variable Information Using Movable Means (AREA)
  • Electric Clocks (AREA)
EP22200908.6A 2021-11-10 2022-10-11 Vorrichtung zur anzeige einer folge von zeitgrössenangaben für eine uhr Pending EP4180881A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP21207561.8A EP4180880A1 (de) 2021-11-10 2021-11-10 Vorrichtung zur anzeige einer abfolge von angaben einer zeitlichen grösse für eine uhr

Publications (1)

Publication Number Publication Date
EP4180881A1 true EP4180881A1 (de) 2023-05-17

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Family Applications (2)

Application Number Title Priority Date Filing Date
EP21207561.8A Withdrawn EP4180880A1 (de) 2021-11-10 2021-11-10 Vorrichtung zur anzeige einer abfolge von angaben einer zeitlichen grösse für eine uhr
EP22200908.6A Pending EP4180881A1 (de) 2021-11-10 2022-10-11 Vorrichtung zur anzeige einer folge von zeitgrössenangaben für eine uhr

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP21207561.8A Withdrawn EP4180880A1 (de) 2021-11-10 2021-11-10 Vorrichtung zur anzeige einer abfolge von angaben einer zeitlichen grösse für eine uhr

Country Status (4)

Country Link
US (1) US20230146626A1 (de)
EP (2) EP4180880A1 (de)
JP (1) JP7474812B2 (de)
CN (1) CN116107184A (de)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1813998A1 (de) * 2006-01-27 2007-08-01 Meier Willy Bureau Technique Vorrichtung zur Anzeige der Woche
EP1890205A1 (de) * 2006-08-15 2008-02-20 Chopard Manufacture SA Vorrichtung zur Nullrückstellung für eine Uhr
CH709204A2 (fr) * 2014-01-20 2015-07-31 Dimier 1738 Manufacture De Haute Horlogerie Artisanale Dispositif de commande pour mécanisme horloger et mécanisme horloger comportant un tel dispositif.

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3098671B1 (de) 2015-05-27 2019-10-09 Montres Breguet S.A. Mondphasen-anzeigemechanismus einer uhr
EP3547045B1 (de) 2018-03-26 2022-05-04 Montres Breguet S.A. Übertragungsmechanismus einer uhr mit reduziertem kupplungsaufwand
CN113826050A (zh) 2019-08-30 2021-12-21 百达翡丽日内瓦公司 显示机构

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1813998A1 (de) * 2006-01-27 2007-08-01 Meier Willy Bureau Technique Vorrichtung zur Anzeige der Woche
EP1890205A1 (de) * 2006-08-15 2008-02-20 Chopard Manufacture SA Vorrichtung zur Nullrückstellung für eine Uhr
CH709204A2 (fr) * 2014-01-20 2015-07-31 Dimier 1738 Manufacture De Haute Horlogerie Artisanale Dispositif de commande pour mécanisme horloger et mécanisme horloger comportant un tel dispositif.

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Publication number Publication date
CN116107184A (zh) 2023-05-12
JP7474812B2 (ja) 2024-04-25
US20230146626A1 (en) 2023-05-11
EP4180880A1 (de) 2023-05-17
JP2023071154A (ja) 2023-05-22

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