EP3120954A1 - Verkleidungsmethode eines bauteils - Google Patents

Verkleidungsmethode eines bauteils Download PDF

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Publication number
EP3120954A1
EP3120954A1 EP15178288.5A EP15178288A EP3120954A1 EP 3120954 A1 EP3120954 A1 EP 3120954A1 EP 15178288 A EP15178288 A EP 15178288A EP 3120954 A1 EP3120954 A1 EP 3120954A1
Authority
EP
European Patent Office
Prior art keywords
preform
foam
expansion
amorphous metal
manufacturing
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.)
Granted
Application number
EP15178288.5A
Other languages
English (en)
French (fr)
Other versions
EP3120954B1 (de
Inventor
Alban Dubach
Yves Winkler
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.)
Swatch Group Research and Development SA
Original Assignee
Swatch Group Research and Development 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
Priority to EP15178288.5A priority Critical patent/EP3120954B1/de
Application filed by Swatch Group Research and Development SA filed Critical Swatch Group Research and Development SA
Priority to CH01083/15A priority patent/CH711381B1/fr
Priority to PCT/EP2016/067292 priority patent/WO2017016951A1/fr
Priority to CN201680043305.8A priority patent/CN107921538B/zh
Priority to US15/741,310 priority patent/US11167349B2/en
Priority to JP2018502408A priority patent/JP6523551B2/ja
Publication of EP3120954A1 publication Critical patent/EP3120954A1/de
Priority to HK18111786.5A priority patent/HK1252478A1/zh
Application granted granted Critical
Publication of EP3120954B1 publication Critical patent/EP3120954B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D19/00—Casting in, on, or around objects which form part of the product
    • B22D19/08—Casting in, on, or around objects which form part of the product for building-up linings or coverings, e.g. of anti-frictional metal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/10—Sintering only
    • B22F3/11—Making porous workpieces or articles
    • B22F3/1121—Making porous workpieces or articles by using decomposable, meltable or sublimatable fillers
    • B22F3/1125—Making porous workpieces or articles by using decomposable, meltable or sublimatable fillers involving a foaming process
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D19/00—Casting in, on, or around objects which form part of the product
    • B22D19/04—Casting in, on, or around objects which form part of the product for joining parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D23/00—Casting processes not provided for in groups B22D1/00 - B22D21/00
    • B22D23/06—Melting-down metal, e.g. metal particles, in the mould
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
    • B22F7/002—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of porous nature
    • B22F7/004—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of porous nature comprising at least one non-porous part
    • B22F7/006—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of porous nature comprising at least one non-porous part the porous part being obtained by foaming
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making non-ferrous alloys
    • C22C1/11—Making amorphous alloys
    • 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
    • G04B37/00—Cases
    • G04B37/22—Materials or processes of manufacturing pocket watch or wrist watch cases
    • 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
    • G04B37/00—Cases
    • G04B37/22—Materials or processes of manufacturing pocket watch or wrist watch cases
    • G04B37/225—Non-metallic cases
    • G04B37/226—Non-metallic cases coated with a metallic layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D25/00—Special casting characterised by the nature of the product
    • B22D25/005—Casting metal foams

Definitions

  • the present invention relates to a device comprising a first part made of a first material and at least a second part made of a second material, characterized in that the second part is made of a foam and assembled to the first part.
  • the technical field of the invention is the field of fine mechanics.
  • the known methods consist in generally depositing a layer of the desired material by electroplating.
  • Shocks applied to the said part then cause a marking of the coating decreasing the aesthetic appearance of the room and degrading the performance of the coating.
  • Another solution is to use a metal sheet and to fix this metal sheet on the part to be coated as a support. Fixing is done by gluing or welding or soldering or forced insertion.
  • a disadvantage of this method is that it is not suitable for materials that are fragile silicon type.
  • the invention aims to overcome the disadvantages of the prior art by proposing to provide a method for coating a part in a simple and safe manner without limitation as to the nature of the parts fixed together.
  • the expansion of the preform is used to form a coated part.
  • the expansion of the preform is used to form a bi-material part.
  • the first part is provided with at least one cavity in which the amorphous metal foam forming the second part extends.
  • the first part is provided with at least one protuberance (15) around which the amorphous metal foam forming the second part extends.
  • the first part is provided with structures (14) allowing a better grip of the second part.
  • the method comprises a preliminary step of manufacturing an at least partially amorphous metal alloy foam preform.
  • the expansion of the foam is controlled by the temperature, the higher the temperature and the greater the expansion.
  • the expansion of the foam depends on the density of gas in the foam, the greater the volume of trapped gas is large the greater the expansion will be.
  • expansion is achieved by having the pressure in the foam greater than that of the atmosphere.
  • the invention also relates to a device comprising a first part made of a first material and a second part made of a second material, characterized in that the second part extends from one of the faces of the first part and is made of an at least partially amorphous metal alloy foam.
  • the second piece is a coating.
  • the second part makes it possible to form a bi-material part.
  • the first piece is provided with at least one cavity in which the amorphous metal foam forming the second piece extends.
  • the first piece is provided with at least one protuberance around which the amorphous metal foam forming the second piece extends.
  • the first piece is provided with structures in which the amorphous metal foam forming the second piece extends.
  • the present invention relates to a device and its method of assembly, the device comprising a first part and at least a second part.
  • the device 10 comprises a first portion 11 and a second portion 12.
  • the first portion 11 is made of a first material while the second portion 12 is made of a second material.
  • the first part or the second part is in the form of an at least partially amorphous metal foam comprising at least one metal element such as an at least partially amorphous metal alloy.
  • This metal element may be a conventional metallic element such as iron, nickel, zirconium, or precious such as gold, platinum, palladium, rhenium, ruthenium, rhodium, silver, iridium or osmium. It will be understood by at least partially amorphous material that the material is capable of solidifying at least partially in amorphous phase, that is to say that it is subjected to a rise in temperature above its melting temperature allowing it to locally losing any crystalline structure, said rise being followed by cooling to a temperature below its glass transition temperature allowing it to become at least partially amorphous.
  • Such a foam can be made using different techniques.
  • a first method is to bring an alloy and heat it until it reaches a liquid state. At this time, gas bubbles are injected into said alloy in the liquid state. This injection of gas bubbles occurs before a step of rapid cooling. This rapid cooling step is performed to solidify said alloy while trapping the gas bubbles.
  • a second method for producing such a foam is to provide an alloy and heat it until it reaches a liquid state.
  • chemical agents are injected into said alloy in the liquid state.
  • These chemical agents are gas liberating agents so that the latter, under certain conditions, release gases.
  • These chemical agents or precursors may be, for example, titanium or zirconium hydrides. This release of gas occurs before a rapid cooling step. This rapid cooling step is performed to solidify said alloy while trapping the gas bubbles.
  • a variant of this second method consists in providing a material capable of becoming a foam in order to obtain a material which becomes an amorphous metal foam only at the moment of its shaping.
  • the chemical agents used are liberating agents that release gases under certain conditions of temperature and pressure.
  • the pressure during cooling the release of the gas is contained.
  • the increase in temperature allows the release of the gas and therefore the transformation of the foam material.
  • a third method for producing an amorphous metal foam consists of successive layers of powder layers, each layer of powder being sintered locally by a laser or electron beam. This local sintering thus makes it possible, at each layer of powder, to create the pores which will make it possible to form the foam.
  • the second part 12 is then a coating or an integral part of the first part 11.
  • the example of a bezel 21 acting as a first part 11, covered by a layer 22 of foam acting as a second part 12 forming a coated part 20, will be considered.
  • the first material may be a material conventionally used as steel, brass, aluminum or titanium but it may also be a so-called fragile material.
  • the term brittle material is understood to mean a material that does not have a workable plastic domain, for example quartz, ruby, sapphire, glass, silicon, graphite, carbon or a ceramic such as silicon nitride and silicon. silicon carbide or a cermet composite.
  • the method consists, in a first step, of providing a preform 23 of amorphous metal foam.
  • a second step is to provide the part to be coated, here the bezel 21, and to place it in a mold 24 which may be matrices 24a, 24b having the negative shape of the coated part as visible in FIG. figure 2 .
  • This mold can be formed of two matrices.
  • the preform 23 is also placed in the mold.
  • the mold will have the shape of the gear or the bezel and dimensions equal to dimensions of the gear to which are added the 0.1 mm of the layer. There is therefore a space 25 to fill.
  • a heating step is performed.
  • This heating step consists in heating the assembly to a temperature between the glass transition temperature Tg and the crystallization temperature Tx of the preform.
  • Tg glass transition temperature
  • Tx crystallization temperature
  • the amorphous metals have a viscosity which decreases sharply, the decrease of the viscosity being dependent on the temperature: the higher the temperature, the lower the viscosity. This viscosity allows the amorphous metal, when stressed, to fit into every corner of a mold.
  • the pressure in the negative is lower than the pressure of the gas inside the preform, otherwise there can be no expansion.
  • a sealed mold it may be cleverly provided to put the cavity formed by the two matrices under vacuum.
  • the enclosure in which the mold is located is evacuated or at a pressure sufficiently lower than the pressure of the gas.
  • these two matrices can be fastened to each other via fastening means such as screws or simply by exerting on them a pressure.
  • a cooling step is performed. This cooling step is made to freeze the amorphous metal foam preform and form the intermediate piece. The device is then separated from the matrices to obtain the device of the figure 1 .
  • the final piece is composed of a first portion 11 of any material and a second portion 12 amorphous metal foam.
  • the method consists, in a first step, of providing an amorphous metal foam preform.
  • it may be a bi-material bezel consisting of a base 31 acting as a first part 11 on a second part 12 of a second material. This second part 12 then forms an outer shell 32 of the telescope as visible in FIG. figure 5 .
  • the final piece 10 may be an axis 41 whose tigers 42 are made of a second material as visible in FIG. figure 6 .
  • first part or the second part may be amorphous metal foam.
  • a second step is to provide the first portion 11 of the bi-material part and place it in a mold having the shape and dimensions of the final part.
  • the preform is also placed in the mold.
  • the preform has a shape similar to that of the second part.
  • a heating step is performed.
  • This heating step consists in heating the assembly to a temperature between the glass transition temperature Tg and the crystallization temperature Tx of the preform.
  • Tg glass transition temperature
  • Tx crystallization temperature
  • the amorphous metals have a viscosity which decreases sharply, the decrease of the viscosity being dependent on the temperature: the higher the temperature, the lower the viscosity.
  • This viscosity allows the amorphous metal to fit into every corner of a mold. This rise in temperature also makes it possible to heat the gas bubbles present in the foam preform.
  • a heated gas expands so that it will occupy a larger volume. Since the amorphous metal of the foam is in a so-called viscous state, this expansion of the gas causes an expansion of the foam preform, this preform starts to swell. As a result, the volume taken up by the preform increases. This increase in the volume of the preform associated with the shaping characteristics of the amorphous metals leads to the filling of the mold, that is to say the filling of the space dedicated to the second part of the final part.
  • a cooling step is performed. This cooling step is made to freeze the amorphous metal foam preform and form the intermediate piece.
  • the first piece 11 of the final piece is provided with a cavity 13.
  • This cavity 13 is used to improve the connection between the first piece 31 and the second piece 32 in the case where the second piece 32 is a coating or is used to form a bi-material part.
  • the production of a cavity 13 makes it possible, during manufacture, for the amorphous metal foam to extend to reinforce the connection between the first piece and the second piece.
  • This cavity may be provided or replaced, depending on the case, by structures 14 which increase the roughness and thus the grip as visible in FIG. figure 8 .
  • the cavity is arranged to have a shape such that its surface is not constant. This means that the cavity does not have a constant profile as a function of depth. Ideally, the profile of the cavity will be widened as a function of depth so as to create a natural reservoir.
  • the preform becomes a foam only in the third step.
  • the foam uses precursor chemical agents which release gas under the effect of a temperature, it has previously been described that the alloy containing these precursor chemicals can be cooled before they release the gas to obtain a preform is not in the form of a foam.
  • the method is to provide the preform is not in the form of a foam and place it in the mold.
  • the whole is then heated to a temperature allowing the precursor chemical agents to release gas, this temperature also allowing the gases to expand and cause an expansion of the material.
  • control of the expansion of the amorphous metal foam preform can be done in several ways.
  • a first solution consists in modifying the density of the gas bubbles during the manufacture of the foam.
  • One method of making amorphous metal foam is to inject gas bubbles into the molten metal and cool it to trap these bubbles.
  • the injection of gas bubbles can be controlled so that they are distributed more or less homogeneously and more or less dense. It will be understood that the higher the density of the gas bubbles, the greater the volume of gas enclosed in the foam. However, the larger the enclosed volume of gas and the greater the expansion will be due to the expansion of the gas during the heating step.
  • a second solution is to control the expansion of the amorphous metal foam by changing the temperature of the heating step. Indeed, when a gas is subjected to a warming, the amount of movement of the particles that compose it increases. At constant volume, this results in an increase in pressure because the number of shocks between particles per unit area increases. If the pressure must remain constant, the volume of the gas must then increase, according to the ideal gas law. Therefore, by increasing or decreasing the heating temperature during the heating step, the volume of the gas enclosed in the amorphous metal foam is varied and its expansion is therefore modified.
  • the control of the expansion of the amorphous metal foam is done by controlling the atmosphere in the heating chamber of the second embodiment or in the mold cavity in the first embodiment.
  • This solution assumes that expansion is possible from the moment when the pressure of the gas enclosed in the amorphous metal foam is greater than that of the atmosphere outside the foam.
  • the outside atmosphere should be close to the vacuum so that foam expansion is maximized. Therefore, by adjusting the external pressure, the amplitude of the expansion of said foam is adjusted knowing that the higher the pressure of the outside atmosphere is important and the less the expansion will be important.
  • the cavities can be replaced or completed with protuberances 15 as visible in FIG. figure 9 .
  • These protuberances are the negatives of the cavities and have the same function.
  • the amorphous metal foam is shaped so as to be able to wrap this or these protuberances and improve the joining between the first part and the second part.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Composite Materials (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Powder Metallurgy (AREA)
  • Laminated Bodies (AREA)
  • Micromachines (AREA)
EP15178288.5A 2015-07-24 2015-07-24 Verkleidungsmethode eines bauteils Active EP3120954B1 (de)

Priority Applications (7)

Application Number Priority Date Filing Date Title
CH01083/15A CH711381B1 (fr) 2015-07-24 2015-07-24 Dispositif comportant une partie en mousse d'alliage métallique amorphe et procédé de fabrication.
EP15178288.5A EP3120954B1 (de) 2015-07-24 2015-07-24 Verkleidungsmethode eines bauteils
CN201680043305.8A CN107921538B (zh) 2015-07-24 2016-07-20 部件涂覆方法
US15/741,310 US11167349B2 (en) 2015-07-24 2016-07-20 Part coating method
PCT/EP2016/067292 WO2017016951A1 (fr) 2015-07-24 2016-07-20 Methode de revetement de piece
JP2018502408A JP6523551B2 (ja) 2015-07-24 2016-07-20 部品を被覆する方法
HK18111786.5A HK1252478A1 (zh) 2015-07-24 2018-09-13 部件塗覆方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP15178288.5A EP3120954B1 (de) 2015-07-24 2015-07-24 Verkleidungsmethode eines bauteils

Publications (2)

Publication Number Publication Date
EP3120954A1 true EP3120954A1 (de) 2017-01-25
EP3120954B1 EP3120954B1 (de) 2022-04-06

Family

ID=53758082

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15178288.5A Active EP3120954B1 (de) 2015-07-24 2015-07-24 Verkleidungsmethode eines bauteils

Country Status (7)

Country Link
US (1) US11167349B2 (de)
EP (1) EP3120954B1 (de)
JP (1) JP6523551B2 (de)
CN (1) CN107921538B (de)
CH (1) CH711381B1 (de)
HK (1) HK1252478A1 (de)
WO (1) WO2017016951A1 (de)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH352966A (fr) * 1958-11-19 1961-03-15 Emir S A Pièce d'horlogerie et procédé pour sa fabrication
DE19908867A1 (de) * 1999-03-01 2000-09-07 Arved Huebler Verbundkörper sowie Verfahren zum Herstellen eines Verbundkörpers
DE19912618A1 (de) * 1999-03-22 2000-09-28 Meleghy Hydroforming Gmbh & Co Bauteil mit partieller Verstärkung und Verfahren zu dessen Herstellung
DE19928997A1 (de) * 1999-06-24 2001-01-04 Fraunhofer Ges Forschung Verfahren und Vorrichtung zum Schäumen von Metallen
DE10205070A1 (de) * 2002-02-07 2003-08-21 Fraunhofer Ges Forschung Verfahren und Vorrichtung zur Herstellung von Metallschaum-Verbundkörpern, Metallschaum-Verbundkörper und Metallschaumlaminat
EP1677332A2 (de) * 2004-12-29 2006-07-05 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Verfahren zur Herstellung einer Strahlungsquelle
DE102008060234A1 (de) * 2008-12-04 2010-06-10 Mann + Hummel Gmbh Fluidleitung und Verfahren zur Herstellung einer Fluidleitung
EP2725000A1 (de) * 2012-10-24 2014-04-30 The Swatch Group Research and Development Ltd. Selektiv leitende und mit Metallmaterial beschichtete Keramik
EP2835698A1 (de) * 2013-08-07 2015-02-11 The Swatch Group Research and Development Ltd. Verkleidungselement mit Schutzhaube aus metallischem Glas

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE388778T1 (de) * 2002-05-20 2008-03-15 Liquidmetal Technologies Geschäumte strukturen von glasbildenden amorphen legierungen
US7621314B2 (en) * 2003-01-17 2009-11-24 California Institute Of Technology Method of manufacturing amorphous metallic foam
JP2006002195A (ja) * 2004-06-16 2006-01-05 Tohoku Univ ポーラス金属ガラスの製造方法とポーラス金属ガラス
US7597840B2 (en) * 2005-01-21 2009-10-06 California Institute Of Technology Production of amorphous metallic foam by powder consolidation
US7705458B2 (en) * 2006-06-20 2010-04-27 Intel Corporation Bulk metallic glass solders, foamed bulk metallic glass solders, foamed-solder bond pads in chip packages, methods of assembling same, and systems containing same
WO2009070701A1 (en) * 2007-11-26 2009-06-04 Yale University Method of blow molding a bulk metallic glass
JP4450080B2 (ja) * 2008-02-01 2010-04-14 セイコーエプソン株式会社 腕時計用歯車及び腕時計用歯車の製造方法
JP5556257B2 (ja) * 2010-03-11 2014-07-23 富士通株式会社 無線通信装置

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH352966A (fr) * 1958-11-19 1961-03-15 Emir S A Pièce d'horlogerie et procédé pour sa fabrication
DE19908867A1 (de) * 1999-03-01 2000-09-07 Arved Huebler Verbundkörper sowie Verfahren zum Herstellen eines Verbundkörpers
DE19912618A1 (de) * 1999-03-22 2000-09-28 Meleghy Hydroforming Gmbh & Co Bauteil mit partieller Verstärkung und Verfahren zu dessen Herstellung
DE19928997A1 (de) * 1999-06-24 2001-01-04 Fraunhofer Ges Forschung Verfahren und Vorrichtung zum Schäumen von Metallen
DE10205070A1 (de) * 2002-02-07 2003-08-21 Fraunhofer Ges Forschung Verfahren und Vorrichtung zur Herstellung von Metallschaum-Verbundkörpern, Metallschaum-Verbundkörper und Metallschaumlaminat
EP1677332A2 (de) * 2004-12-29 2006-07-05 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Verfahren zur Herstellung einer Strahlungsquelle
DE102008060234A1 (de) * 2008-12-04 2010-06-10 Mann + Hummel Gmbh Fluidleitung und Verfahren zur Herstellung einer Fluidleitung
EP2725000A1 (de) * 2012-10-24 2014-04-30 The Swatch Group Research and Development Ltd. Selektiv leitende und mit Metallmaterial beschichtete Keramik
EP2835698A1 (de) * 2013-08-07 2015-02-11 The Swatch Group Research and Development Ltd. Verkleidungselement mit Schutzhaube aus metallischem Glas

Also Published As

Publication number Publication date
US11167349B2 (en) 2021-11-09
HK1252478A1 (zh) 2019-05-24
CN107921538A (zh) 2018-04-17
JP2018522738A (ja) 2018-08-16
WO2017016951A1 (fr) 2017-02-02
CH711381B1 (fr) 2023-02-15
CN107921538B (zh) 2020-06-23
CH711381A2 (fr) 2017-01-31
US20180193919A1 (en) 2018-07-12
EP3120954B1 (de) 2022-04-06
JP6523551B2 (ja) 2019-06-05

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