EP3923084B1 - Systeme d'anticorrection d'un indicateur pour une piece d'horlogerie - Google Patents

Systeme d'anticorrection d'un indicateur pour une piece d'horlogerie Download PDF

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Publication number
EP3923084B1
EP3923084B1 EP20179603.4A EP20179603A EP3923084B1 EP 3923084 B1 EP3923084 B1 EP 3923084B1 EP 20179603 A EP20179603 A EP 20179603A EP 3923084 B1 EP3923084 B1 EP 3923084B1
Authority
EP
European Patent Office
Prior art keywords
correction
indicator
component
correction system
protuberance
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.)
Active
Application number
EP20179603.4A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3923084A1 (fr
Inventor
Stéphane BACHMANN
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.)
ETA SA Manufacture Horlogere Suisse
Original Assignee
ETA SA Manufacture Horlogere Suisse
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 ETA SA Manufacture Horlogere Suisse filed Critical ETA SA Manufacture Horlogere Suisse
Priority to EP20179603.4A priority Critical patent/EP3923084B1/fr
Priority to US17/234,917 priority patent/US11860578B2/en
Priority to JP2021071580A priority patent/JP7160991B2/ja
Priority to KR1020210062115A priority patent/KR102614213B1/ko
Priority to CN202110651142.4A priority patent/CN113805458B/zh
Publication of EP3923084A1 publication Critical patent/EP3923084A1/fr
Application granted granted Critical
Publication of EP3923084B1 publication Critical patent/EP3923084B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • G04B19/25353—Driving or releasing mechanisms wherein the date indicators are driven or released mechanically by a clockwork movement driven or released stepwise by the clockwork movement
    • G04B19/2536—Driving or releasing mechanisms wherein the date indicators are driven or released mechanically by a clockwork movement driven or released stepwise by the clockwork movement automatically corrected at the end of months having less than 31 days
    • 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
    • G04B19/25306—Independent date indicating devices activated by hand or by clockwork, e.g. calendar watches
    • G04B19/25313—Independent date indicating devices activated by hand or by clockwork, e.g. calendar watches driven or released by a steady movement
    • G04B19/25326—Independent date indicating devices activated by hand or by clockwork, e.g. calendar watches driven or released by a steady movement manually corrected at the end of months having less than 31 days
    • 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
    • G04B13/00—Gearwork
    • 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
    • G04B19/25306—Independent date indicating devices activated by hand or by clockwork, e.g. calendar watches
    • 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
    • G04B19/25306—Independent date indicating devices activated by hand or by clockwork, e.g. calendar watches
    • G04B19/25313—Independent date indicating devices activated by hand or by clockwork, e.g. calendar watches driven or released by a steady movement
    • G04B19/2532—Independent date indicating devices activated by hand or by clockwork, e.g. calendar watches driven or released by a steady movement automatically corrected at the end of mounths having less than 31 days
    • 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
    • G04B19/2534—Driving or releasing mechanisms wherein the date indicators are driven or released mechanically by a clockwork movement driven or released continuously by the clockwork movement
    • G04B19/25346—Driving or releasing mechanisms wherein the date indicators are driven or released mechanically by a clockwork movement driven or released continuously by the clockwork movement manually corrected at the end of months having less than 31 days
    • 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 invention relates to an anti-correction system for an indicator for a timepiece. Without this being limiting, a particular field of application of the present invention is that of horological complications such as annual calendar mechanisms.
  • the indicator is for example a date indicator, a month indicator or even a day or year indicator or a weekly indicator.
  • the invention also relates to a timepiece comprising such an anti-correction system.
  • the timepiece is for example a mechanical watch.
  • An annual calendar mechanism is a watchmaking complication which takes into account the fact that the twelve months of the year do not all have the same number of days.
  • the annual calendar mechanism is therefore capable of correctly displaying the date of the first day of the months following a month of thirty days.
  • Such a mechanism takes into account neither the month of February (considered as a month with thirty or thirty-one days) nor leap years.
  • the difference in duration between months is typically taken into account using a cam having solid parts and notches.
  • the correction of the month on the thirtieth day of each month must be blocked mechanically within the system. Indeed, otherwise, there is a risk of temporary desynchronization.
  • Such mechanical blocking is for example carried out by means of a lug provided on an upper part of the date indicator.
  • the position of the lug on the date indicator is chosen such that the lug blocks a drive train from rotating on the thirtieth day of each month, the drive train being integral with a correction train configured to mesh with the month indicator under the action of a correction mechanism.
  • the correction mechanism is in fact configured to mesh with the correction gear in a correction position, and is mounted movable between this correction position and a non-correction position.
  • a problem posed by this type of mechanical blocking is that if the user decides to manually correct the month (for example by means of a manual correction system of the actuating rod type) when the lug blocks the rotation of the drive cog, there is a very significant risk that the user will force the system, thus leading to degradation or even breakage of certain components such as the correction cog, for example.
  • a known solution consists of providing, in the correction mechanism of the month indicator, a part held by friction and capable of rotating around an axis, of the friction board type.
  • the invention therefore aims to provide an anti-correction system for an indicator for a timepiece, making it possible to simply prevent any deterioration of the component in the event of an attempt at manual correction during a day or 'an hour during which (which) correction is prohibited, without having to resort to a part held by friction.
  • the invention relates to an anti-correction system for an indicator for a timepiece, and which comprises the characteristics mentioned in independent claim 1.
  • the system comprises a component mounted movable in rotation around an axis.
  • the component has a first end configured to cooperate with at least one protrusion provided on the date indicator or the hour wheel, and a second end configured to cooperate with the correction mechanism so as to block the mechanism in an anti-correction position when the first end of the component cooperates with said at least one protrusion.
  • the component On other days (not prohibited) of the month, or other hours (not prohibited) of the day, the component is free and allows the correction mechanism to swing equally freely from its non-correction position to its correction position in which it meshes with the correction gear.
  • Such a solution according to the invention is particularly simple and makes it possible to control the performance and stability of the anti-correction system, compared to the solutions of the prior art implementing work of parts held by friction.
  • the system according to the invention makes it possible to prevent any component damage in the event of an attempt at manual correction during a day or hour during which (which) correction is prohibited, while ensuring proper conduct of the date mechanism and avoiding any risk of temporary desynchronization.
  • the component is mounted to rotate freely around the axis. This variant makes it possible to reduce the consumption of mechanical torque within the system. It also makes it possible to reduce mechanical wear between the components of the system and therefore to increase the longevity of the latter.
  • system further comprises at least one stop configured to limit the angular movement of the correction mechanism between its correction and non-correction positions.
  • the correction mechanism is configured so that its second non-correction position of the indicator corresponds to a correction position of the date indicator or the hour wheel.
  • the correction mechanism is configured so that its anti-correction position corresponds to its second non-correction position of the indicator.
  • the or each protrusion is provided on a lower part of the date indicator or of the hour wheel, and extends in a plane defined by the lower part of said date indicator or of said hour wheel.
  • the system is a month indicator anti-correction system
  • the date indicator is provided with at least one protrusion, the position of the or each protrusion on the indicator date corresponding to a date predetermined for which the protrusion cooperates with the first end of the component so as to cause the mechanism to lock in its anti-correction position.
  • the system is a date indicator anti-correction system
  • the hour wheel is provided with at least one protrusion, the position of the or each protrusion on the hour wheel. corresponding to a predetermined time during which the protrusion cooperates with the first end of the component so as to cause the mechanism to lock in its anti-correction position.
  • the invention also relates to a watch movement comprising the anti-correction system described above, and which comprises the characteristics mentioned in dependent claim 14.
  • the invention also relates to a timepiece comprising the watch movement described above and/or the anti-correction system described above, and which comprises the characteristics mentioned in dependent claim 15.
  • a particular form of the timepiece is defined in dependent claim 16.
  • THE figures 1 to 4 represent a part of a timepiece 1, which comprises a watch movement 2.
  • the timepiece 1 is typically a mechanical watch.
  • the watch movement 2 includes a system 4 for anti-correcting an indicator 6.
  • the indicator 6 is for example a date indicator, a month indicator or even a day or year indicator or a weekly calendar, without this is limiting in the context of the present invention.
  • the system 4 is an anti-correction system for a month indicator 6.
  • the watch movement 2 also includes a date indicator 5 and a mechanism of annual calendar (the latter not being shown in the figures).
  • the 6 month indicator is shown on the figure 1 .
  • the month indicator 6 is mounted to rotate around an axis 6a.
  • the month indicator 6 is driven by another system (not shown) belonging to the annual calendar mechanism, in order to modify the value of the month at the end of the thirtieth day.
  • system 4 is an anti-correction system for a date indicator.
  • the system 4 includes a mechanism 8 for correcting the month indicator 6, a correction cog 10, a drive cog 12, and a mobile component 14 (not shown in the figure). figure 1 for reasons of clarity).
  • system 4 also includes at least one stop (not visible in the figures).
  • the system 4 also comprises a spring mounted so as to bias the mobile component 14 towards an elastic return position.
  • the correction mechanism 8 is connected to a manual correction actuation system (not shown in the figures), such as for example an actuation rod connected to a winding crown.
  • the correction mechanism 8 is mounted movable between a first correction position illustrated on the figures 1 and 2 , in which the correction mechanism 8 meshes with the correction gear 10; and a second non-correction position (not shown in the figures) in which the mechanism 8 does not mesh with the correction gear 10.
  • the correction mechanism 8 is configured so that its second non-correction position the month indicator 6 corresponds to a correction position of the date indicator 5. More preferably, the correction mechanism 8 comprises at least one drive finger 18.
  • THE correction mechanism 8 comprises three drive fingers 18 regularly distributed over 360 degrees around an axis 18a which is mounted on the mechanism 8.
  • the drive fingers 18 are integral and rotatably mounted around the axis 18a.
  • the drive fingers 18 are configured to mesh with the correction gear 10 in the first correction position of the mechanism 8.
  • the correction gear 10 is integral with the drive gear 12. As illustrated in the figure 1 , the correction gear 10 is configured to mesh with the month indicator 6.
  • the drive train 12 is mounted on the correction train 10, and is for example configured to cooperate with at least one lug 19 provided on an upper part 20 of the date indicator 5.
  • the upper part 20 of the date indicator 5 is provided with a single lug 19.
  • the lug 19 drives the month indicator 6, via the drive train 12, during a long month (at thirty- and-one days).
  • the lug 19 is driven by the month indicator 6, via the drive cog 12, during a short month (less than thirty-one days).
  • the lug 19 extends in the plane defined by the upper part 20 of the date indicator 5, and extends radially towards the inside of the date indicator 5.
  • the upper part 20 of the date indicator 5 is not provided with any lug. This is for example the case when the watch movement 2 is equipped with a simple non-annual date mechanism.
  • Component 14 which is visible on the figures 2 to 4 , is mounted movable in rotation around an axis 22. In the preferred embodiment shown on the figures 1 to 4 , the component 14 is mounted to rotate freely around the axis 22. The component 14 is held in height on the axis 22, typically by means of a tenon or a pin.
  • the component 14 has a first end 14a and a second end 14b.
  • component 14 has the shape of a lever. In this case, the first end 14a corresponds to a corner of a first enlarged part 21 of the lever, and the second end 14b corresponds to a free end of a second arm-shaped part 23 of the lever.
  • the first end 14a is configured to cooperate with at least one protrusion 24 provided on a lower part 25 of the date indicator 5.
  • the lower part 25 of the date indicator 5 is provided with a single protrusion 24.
  • the protrusion 24 extends in the plane defined by the lower part 25 of the date indicator 5, and extends radially towards the inside of the date indicator 5.
  • the lower part 25 of the date indicator 5 is provided with at least two protrusions distributed at regular or irregular intervals on the periphery of the date indicator 5.
  • the component 14 is for example made of a plastic material or a metallic material, in particular of steel. Component 14 is advantageously manufactured via a stamp, or via plastic or metal injection, or even in the form of strips or necklines.
  • the second end 14b of the component 14 is configured to cooperate with the correction mechanism 8 so as to block the mechanism 8 in an anti-correction position when the first end 14a of the component 14 cooperates with the protrusion 24.
  • component 14 then rotates around its axis 22 and blocks mechanism 8 in the anti-correction position.
  • the correction mechanism 8 is then stopped before the end of its travel for the correction of the month, and rotates in a vacuum.
  • the anti-correction position of mechanism 8, visible on the figures 3 and 4 is a prohibited correction position of the month indicator 6.
  • the anti-correction position of mechanism 8 is an intermediate position between the first correction position and the second non-correction position of the indicator 6.
  • the correction mechanism 8 is configured so that its anti-correction position corresponds to its second non-correction position of the indicator. month 6.
  • the protrusion 24 is for example positioned so that the anti-correction position of the mechanism 8 is activated on the thirtieth day of each month.
  • the mobile component 14 is in an authorized correction position which is shown on the figure 2 . In this position of the mobile component 14, the correction mechanism 8 is free to switch from its non-correction position to its correction position, and vice versa. This situation occurs for example on a day other than the thirtieth day of the month.
  • the month indicator 6, the correction mechanism 8, the correction gear 10, the mobile component 14 and the stop are for example mounted on a plate 26 of the timepiece 1.
  • At least one of the stops is configured to limit the angular movement of the correction mechanism 8 between its first correction position and its second non-correction position. At least one other stop can be configured to limit the angular movement of the mobile component 14.
  • the present invention has been described with reference to a particular embodiment according to which the system 4 is a month indicator anti-correction system 6, and in which the lower part 25 of the date indicator 5 is provided with a only protrusion 24.
  • the lower part 25 of the date indicator 5 is provided with at least two protrusions. The position of each protrusion on the date indicator 5 then corresponds to a predetermined date for which the protrusion cooperates with the first end 14a of the component 14 of so as to cause the mechanism 8 to block in its anti-correction position.
  • manual correction of the month is prohibited on at least two predetermined days of each month.
  • system 4 is a date indicator anti-correction system.
  • a lower part of the hour wheel is provided with at least one protrusion, preferably with at least two protrusions.
  • the position of each protrusion on the hour wheel then corresponds to a predetermined time during which the protrusion cooperates with the first end 14a of the component 14 so as to cause the mechanism 8 to be blocked in its anti-correction position.
  • manual correction of the date is prohibited during at least one predetermined time of each day, preferably during at least two predetermined hours of each day.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
EP20179603.4A 2020-06-12 2020-06-12 Systeme d'anticorrection d'un indicateur pour une piece d'horlogerie Active EP3923084B1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP20179603.4A EP3923084B1 (fr) 2020-06-12 2020-06-12 Systeme d'anticorrection d'un indicateur pour une piece d'horlogerie
US17/234,917 US11860578B2 (en) 2020-06-12 2021-04-20 Indicator anti-correction system for a timepiece
JP2021071580A JP7160991B2 (ja) 2020-06-12 2021-04-21 計時器のためのインジケーターの変更防止システム
KR1020210062115A KR102614213B1 (ko) 2020-06-12 2021-05-13 타임피스용 인디게이터 보정 방지 시스템
CN202110651142.4A CN113805458B (zh) 2020-06-12 2021-06-10 用于钟表的指示器防校正系统

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20179603.4A EP3923084B1 (fr) 2020-06-12 2020-06-12 Systeme d'anticorrection d'un indicateur pour une piece d'horlogerie

Publications (2)

Publication Number Publication Date
EP3923084A1 EP3923084A1 (fr) 2021-12-15
EP3923084B1 true EP3923084B1 (fr) 2024-07-24

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ID=71094106

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20179603.4A Active EP3923084B1 (fr) 2020-06-12 2020-06-12 Systeme d'anticorrection d'un indicateur pour une piece d'horlogerie

Country Status (5)

Country Link
US (1) US11860578B2 (zh)
EP (1) EP3923084B1 (zh)
JP (1) JP7160991B2 (zh)
KR (1) KR102614213B1 (zh)
CN (1) CN113805458B (zh)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1335253B1 (fr) * 2002-02-11 2009-04-22 Rolex Sa Mécanisme de quantième annuel pour mouvement d'horlogerie
EP3407142A1 (fr) * 2017-05-22 2018-11-28 Officine Panerai AG Mouvement horloger a fonction "stop second"

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4240249A (en) 1979-03-05 1980-12-23 Kruglov Gennady A Instantaneous calendar device for timepieces
JP2651150B2 (ja) 1987-06-16 1997-09-10 シチズン時計株式会社 時計のカレンダー機構
EP2701014A1 (fr) * 2012-08-21 2014-02-26 Rolex Sa Bascule d'embrayage et dispositif d'embrayage pour mécanisme horloger
CH708853B1 (fr) * 2013-10-31 2017-11-30 Parmigiani Fleurier SA Calendrier hégirien pour mouvement d'horlogerie.
EP2945026B1 (fr) 2014-05-14 2018-01-03 ETA SA Manufacture Horlogère Suisse Mécanisme de correction rapide d'horlogerie
CN106104394B (zh) 2014-05-14 2018-06-01 Eta瑞士钟表制造股份有限公司 具有快速修正器的钟表显示机构
EP3144743B1 (fr) 2015-09-15 2018-03-14 ETA SA Manufacture Horlogère Suisse Mouvement horloger comprenant un mécanisme de correction de la date
EP3483664B1 (fr) * 2017-11-10 2020-06-03 Montres Breguet S.A. Mecanisme horloger d'affichage du jour lunaire et de la phase de lune, avec systeme de correction a double chaine cinematique

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1335253B1 (fr) * 2002-02-11 2009-04-22 Rolex Sa Mécanisme de quantième annuel pour mouvement d'horlogerie
EP3407142A1 (fr) * 2017-05-22 2018-11-28 Officine Panerai AG Mouvement horloger a fonction "stop second"

Also Published As

Publication number Publication date
US11860578B2 (en) 2024-01-02
EP3923084A1 (fr) 2021-12-15
CN113805458B (zh) 2023-02-17
KR20210154725A (ko) 2021-12-21
US20210389727A1 (en) 2021-12-16
KR102614213B1 (ko) 2023-12-14
CN113805458A (zh) 2021-12-17
JP2021196343A (ja) 2021-12-27
JP7160991B2 (ja) 2022-10-25

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