CH716523A2 - 9 carat gold alloy for watchmaking, jewelery or jewelry. - Google Patents
9 carat gold alloy for watchmaking, jewelery or jewelry. Download PDFInfo
- Publication number
- CH716523A2 CH716523A2 CH01059/19A CH10592019A CH716523A2 CH 716523 A2 CH716523 A2 CH 716523A2 CH 01059/19 A CH01059/19 A CH 01059/19A CH 10592019 A CH10592019 A CH 10592019A CH 716523 A2 CH716523 A2 CH 716523A2
- Authority
- CH
- Switzerland
- Prior art keywords
- gold
- gold alloy
- weight
- alloy according
- palladium
- Prior art date
Links
- 229910001020 Au alloy Inorganic materials 0.000 title claims abstract description 29
- 239000003353 gold alloy Substances 0.000 title claims abstract description 29
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 claims abstract description 33
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims abstract description 20
- 229910052737 gold Inorganic materials 0.000 claims abstract description 20
- 239000010931 gold Substances 0.000 claims abstract description 20
- 229910052763 palladium Inorganic materials 0.000 claims abstract description 16
- 229910052709 silver Inorganic materials 0.000 claims abstract description 15
- 239000004332 silver Substances 0.000 claims abstract description 15
- 239000010949 copper Substances 0.000 claims abstract description 12
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 11
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910052802 copper Inorganic materials 0.000 claims abstract description 11
- 229910052733 gallium Inorganic materials 0.000 claims abstract description 11
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 4
- 229910052741 iridium Inorganic materials 0.000 claims description 4
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 claims description 4
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 claims description 3
- 229910052702 rhenium Inorganic materials 0.000 claims description 3
- WUAPFZMCVAUBPE-UHFFFAOYSA-N rhenium atom Chemical compound [Re] WUAPFZMCVAUBPE-UHFFFAOYSA-N 0.000 claims description 3
- 229910052707 ruthenium Inorganic materials 0.000 claims description 3
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims description 2
- 229910017052 cobalt Inorganic materials 0.000 claims description 2
- 239000010941 cobalt Substances 0.000 claims description 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 2
- 229910052748 manganese Inorganic materials 0.000 claims description 2
- 239000011572 manganese Substances 0.000 claims description 2
- 229910052759 nickel Inorganic materials 0.000 claims description 2
- 229910045601 alloy Inorganic materials 0.000 abstract description 23
- 239000000956 alloy Substances 0.000 abstract description 23
- 238000005260 corrosion Methods 0.000 description 8
- 230000007797 corrosion Effects 0.000 description 8
- 239000011701 zinc Substances 0.000 description 7
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 6
- 229910052725 zinc Inorganic materials 0.000 description 6
- 238000000137 annealing Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000005494 tarnishing Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 229910000906 Bronze Inorganic materials 0.000 description 1
- 229910001295 No alloy Inorganic materials 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000004737 colorimetric analysis Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000002932 luster Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C30/00—Alloys containing less than 50% by weight of each constituent
- C22C30/02—Alloys containing less than 50% by weight of each constituent containing copper
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C5/00—Alloys based on noble metals
- C22C5/02—Alloys based on gold
-
- A—HUMAN NECESSITIES
- A44—HABERDASHERY; JEWELLERY
- A44C—PERSONAL ADORNMENTS, e.g. JEWELLERY; COINS
- A44C27/00—Making jewellery or other personal adornments
- A44C27/001—Materials for manufacturing jewellery
- A44C27/002—Metallic materials
- A44C27/003—Metallic alloys
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C9/00—Alloys based on copper
-
- 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
-
- G04B37/221—
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Coloring Foods And Improving Nutritive Qualities (AREA)
Abstract
L'invention concerne un alliage d'or sans zinc comprenant en poids entre 37% et 38,5% d'or, entre 4 et 32% de palladium et/ou d'argent, entre 25% et 54% de cuivre et entre 0% et 10% de gallium. L'invention se rapporte également à la pièce d'horlogerie, de bijouterie ou de joaillerie réalisée dans cet alliage.The invention relates to a zinc-free gold alloy comprising by weight between 37% and 38.5% gold, between 4 and 32% palladium and/or silver, between 25% and 54% copper and between 0% and 10% gallium. The invention also relates to the timepiece, piece of jewelery or jewelery made from this alloy.
Description
Description Description
Domaine de l'invention Field of the invention
[0001] L'invention concerne un alliage d'or 9 carats presentant une bonne deformabilite, ainsi qu'une resistance ä la corrosion sous contrainte et une resistance au ternissement ameliorees. The invention relates to a 9 carat gold alloy having good deformability, as well as resistance to stress corrosion and resistance to tarnish.
[0002] L'invention concerne egalement une piece d'horlogerie, de bijouterie ou de joaillerie realisee dans cet alliage d'or. The invention also relates to a timepiece, jewelry or jewelery made in this gold alloy.
Arriere-plan de l'invention Background of the invention
[0003] Les ors 9 carats contiennent majoritairement du zinc pour des raisons d'eclat. Malheureusement, la plupart de ces alliages sont sensibles ä la corrosion sous contrainte selon la publication „Stress Corrosion in Gold Alloys" de Jennifer M.M. Dugmore et Charles D. DesForges. Dans le domaine de l'horlogerie, ces alliages se fissurent ä l'air libre et ne peuvent plus etre lamines aux dimensions souhaitees. Dans le domaine de la bijouterie / joaillerie et dans un cas particulier de sertissage, ces alliages ne peuvent plus etre sertis sous risque de perdre une pierre. [0003] 9-carat gold mainly contains zinc for reasons of luster. Unfortunately, most of these alloys are susceptible to stress corrosion according to the publication "Stress Corrosion in Gold Alloys" by Jennifer M.M. Dugmore and Charles D. DesForges. free and can no longer be rolled to the desired dimensions.In the field of jewellery/jewellery and in a particular case of crimping, these alloys can no longer be crimped under the risk of losing a stone.
[0004] Le zinc a aussi malheureusement l'inconvenient de polluer les fours lors des coulees et des recuits de recristallisation. Ceci gene les affineurs d'or qui sont sans cesse soumis au nettoyage incessant de leurs fours evitant toute contamination sur d'autres alliages. [0004]Zinc also unfortunately has the disadvantage of polluting the furnaces during casting and recrystallization annealing. This embarrasses the gold refiners who are constantly subjected to the incessant cleaning of their furnaces avoiding any contamination on other alloys.
[0005] Dans le domaine de l'horlogerie/bijouterie/joaillerie de luxe, ces alliages sont donc peu utilises, bien qu'ils presentent l'avantage d'etre moins onereux que des alliages de teinte identique en or 18 carats. [0005] In the field of watchmaking/jewellery/luxury jewelry, these alloys are therefore little used, although they have the advantage of being less expensive than alloys of identical color in 18-carat gold.
[0006] A notre connaissance, il n'existe aucun alliage du marche d'or 9 carats qui ait ete developpe avec des caracteristiques de ternissement, de deformabilite et de resistance ä la corrosion sous contrainte par rapport aux alliages d'or Standards du marche. [0006] To our knowledge, there is no alloy on the 9 carat gold market which has been developed with characteristics of tarnishing, deformability and resistance to stress corrosion compared to standard gold alloys on the market. .
Resume de l'invention Summary of the invention
[0007] La presente invention a donc pour but de remedier aux inconvenients de l'art anterieur susmentionne en fournissant un alliage d'or 9 carats, presentant une resistance au ternissement, une deformabilite ainsi qu'une resistance ä la corrosion sous contrainte ameliorees par rapport aux alliages d'or 9 carats de teinte de l'art anterieur. [0007] The object of the present invention is therefore to remedy the drawbacks of the aforementioned prior art by providing a 9-carat gold alloy, having a resistance to tarnishing, a deformability as well as a resistance to corrosion under stress improved by compared to the 9 carat gold alloys of prior art tint.
[0008] L'invention a egalement pour but de fournir un alliage d'or 9 carats sans zinc, en vue de faciliter sa mise en ceuvre. The invention also aims to provide a 9-carat gold alloy without zinc, in order to facilitate its implementation.
[0009] A cet effet, l'invention concerne un alliage d'or sans zinc comprenant en poids entre 37,5% et 38,5% d'or, entre 4% et 32% d'argent et/ou de palladium, entre 25,0 % et 54,0 % de cuivre et entre 0 et 10,0% de gallium. To this end, the invention relates to a zinc-free gold alloy comprising by weight between 37.5% and 38.5% gold, between 4% and 32% silver and/or palladium, between 25.0% and 54.0% copper and between 0 and 10.0% gallium.
[0010] Avantageusement, l'invention concerne un alliage d'or constitue en poids de 37,5% ä 38,5% d'or, de 4% ä 32% d'argent et/ou de palladium, de 25,0 % ä 54,0 % de cuivre, de 0 ä 10,0% de gallium et de 0 ä 0.05% d'un element choisi parmi l'iridium, le rhenium et le ruthenium. [0010] Advantageously, the invention relates to a gold alloy which constitutes by weight from 37.5% to 38.5% gold, from 4% to 32% silver and/or palladium, from 25.0 % to 54.0% copper, from 0 to 10.0% gallium and from 0 to 0.05% of an element selected from iridium, rhenium and ruthenium.
[0011] La presente invention se rapporte egalement ä la piece d'horlogerie, de bijouterie ou de joaillerie realisee dans cet alliage. [0011] The present invention also relates to the timepiece, piece of jewelery or jewelery made in this alloy.
[0012] On a constate que les pieces d'horlogerie, de bijouterie ou de joaillerie realisees avec cet alliage sont tres interessantes du point de vue de leur couleur, de leur deformabilite et de leur resistance ä la corrosion (en particulier la corrosion sous contrainte) ainsi qu'au ternissement. [0012] It has been found that timepieces, jewelery or jewelery pieces made with this alloy are very interesting from the point of view of their color, their deformability and their resistance to corrosion (in particular stress corrosion ) as well as tarnishing.
[0013] Du point de vue de sa couleur, elles presentent une belle couleur proche de celle du bronze sans les desavantages lies ä l'oxydation de ce materiau. [0013] From the point of view of its color, they have a beautiful color close to that of bronze without the disadvantages linked to the oxidation of this material.
Description de l'invention Description of the invention
[0014] La presente invention se rapporte ä un alliage d'or sans zinc plus particulierement destine ä une application dans le domaine horloger, de la bijouterie ou de la joaillerie. Elle se rapporte ainsi egalement aux pieces d'horlogerie, de bijouterie ou de joaillerie realisees dans cet alliage. On entend par pieces d'horlogerie aussi bien des composants d'habillage tels qu'un boitier, un cadran, une applique de cadran, un bracelet, etc. que des composants du mouvement tels qu'une platine, un pont ou un balancier. [0014] The present invention relates to a zinc-free gold alloy more particularly intended for an application in the field of watchmaking, jewelery or jewellery. It thus also relates to timepieces, jewelery or jewelry made in this alloy. The term “timepieces” means both exterior components such as a case, a dial, a dial applique, a bracelet, etc. as movement components such as a plate, a bridge or a balance wheel.
[0015] L'alliage d'or selon l'invention comprenant en poids entre 37,5% et 38,5% d'or, de l'argent et/ou du palladium avec un total pour ces deux elements compris entre 4 et 32%, entre 25,0 % et 54,0 % de cuivre et entre 0 et 10,0% de gallium. II a pour particularite d'etre sans zinc. II est par ailleurs sans nickel, sans cobalt, sans fer et sans manganese. The gold alloy according to the invention comprising by weight between 37.5% and 38.5% gold, silver and / or palladium with a total for these two elements between 4 and 32%, between 25.0% and 54.0% copper and between 0 and 10.0% gallium. It has the particularity of being zinc-free. It is also free of nickel, cobalt, iron and manganese.
[0016] Avantageusement l'alliage ä base d'or comprend entre 5 et 26% en poids d'argent et/ou de palladium. [0016] Advantageously, the gold-based alloy comprises between 5 and 26% by weight of silver and/or palladium.
[0017] De preference, l'alliage ä base d'or comprend entre 6% ä 19.5% en poids d'argent et/ou de palladium. [0017] Preferably, the gold-based alloy comprises between 6% to 19.5% by weight of silver and/or palladium.
[0018] Plus preferentiellement, l'alliage ä base d'or comprend entre 7% et 17% en poids d'argent et/ou de palladium. [0018] More preferably, the gold-based alloy comprises between 7% and 17% by weight of silver and/or palladium.
[0019] De maniere particulierement preferee, l'alliage ä base d'or comprend entre 7% et 14.5% en poids d'argent et/ou de palladium. [0019] In a particularly preferred manner, the gold-based alloy comprises between 7% and 14.5% by weight of silver and/or palladium.
[0020] En outre, l'alliage ä base d'or comprend en poids entre 0 et 0,05% (borne comprise) d'un element choisi parmi l'iridium, le rhenium et le ruthenium et de maniere avantageuse l'alliage comprend en poids 0.0025% d'iridium. [0020] In addition, the gold-based alloy comprises by weight between 0 and 0.05% (limit included) of an element chosen from iridium, rhenium and ruthenium and advantageously the alloy comprises by weight 0.0025% iridium.
[0021] Pour preparer l'alliage d'or, les differents elements de la composition sont mis en fusion avant d'etre cooles. Le lingot de coulee est ensuite deforme avec un taux d'ecrouissage superieur ou egal ä 75% reparti en plusieurs passes avec des recuits intermediaires realises ä une temperature de 650°C pendant 30 minutes. Apres refroidissement, les ebauches sont mises ä dimension, par exemple, par usinage. To prepare the gold alloy, the various elements of the composition are melted before being cooled. The cast ingot is then deformed with a hardening rate greater than or equal to 75% distributed over several passes with intermediate annealing carried out at a temperature of 650° C. for 30 minutes. After cooling, the blanks are dimensioned, for example, by machining.
[0022] Les alliages obtenus apres deformation et recuit presentent dans l'espace colorimetrique CIELAB (conforme aux normes CIE n°15, ISO 7724/1, DIN 5033 Teil 7, ASTM E-1164) une valeur a* comprise entre 1 et 8, de preference entre5.5 et 7.5, et une valeur b* comprise entre 12 et 18, de preference entre 14 et 16. [0022] The alloys obtained after deformation and annealing present in the CIELAB colorimetric space (in accordance with the standards CIE n°15, ISO 7724/1, DIN 5033 Teil 7, ASTM E-1164) an a* value of between 1 and 8 , preferably between 5.5 and 7.5, and a b* value between 12 and 18, preferably between 14 and 16.
[0023] Hs presentent une durete comprise entre 125 et 180 HV1, de preference entre 130 et 180 HV1. Hs presentent un potentiel electrochimique superieur ou egal ä 0.52 voll, ce dernier etant obtenu en sommant le potentiel electrochimique de chaque element de l'alliage multiplie par sa concentration atomique. Hs have a hardness of between 125 and 180 HV1, preferably between 130 and 180 HV1. Hs have an electrochemical potential greater than or equal to 0.52 voll, the latter being obtained by summing the electrochemical potential of each element of the alloy multiplied by its atomic concentration.
[0024] Le Tableau 1 montre la composition en %o poids des alliages du marche : N°843, N°844 et N°859 comprenant du zinc ainsi que de deux alliages de laboratoire N°846 et N°848 comprenant du zinc, ces cinq alliages etant des exemples comparatifs. Les alliages N°849-852, 854-858 et 860 sans zinc sont des alliages d'or 9 carats selon l'invention. Les valeurs colorimetriques mesurees, la durete mesuree (HV1) et les potentiels electrochimiques calcules sont aussi presentes dans le Tableau 1. Les valeurs colorimetriques L*a*b* ont ete mesurees avec un spectrophotometre KONICA MINOLTA CM-2600d avec un illuminant D65 et un angle d'observation de 10°. [0024] Table 1 shows the composition in % o weight of the market alloys: No. 843, No. 844 and No. 859 comprising zinc as well as two laboratory alloys No. 846 and No. 848 comprising zinc, these five alloys being comparative examples. Alloys No. 849-852, 854-858 and 860 without zinc are 9-carat gold alloys according to the invention. The measured colorimetric values, the measured hardness (HV1) and the calculated electrochemical potentials are also presented in Table 1. The L*a*b* colorimetric values were measured with a KONICA MINOLTA CM-2600d spectrophotometer with a D65 illuminant and a viewing angle of 10°.
Compositions [%» pOids] Compositions [%» WEIGHT]
Durete Hardness
Eo Eo
Colorimetrie (D65, 10°) Colorimetry (D65, 10°)
Cu. Cu.
Zn. Zn.
Ga. Ga.
Pd. Pd.
Ag. Ag.
Au. At.
[HV1] [HV1]
[Volts] [Volts]
L* I*
a* To*
b* b*
Comparatif Comparative
423,5 423.5
109,0 109.0
92,0 92.0
375,5 375.5
0,407 0.407
91,5 91.5
0,7 0.7
20,3 20.3
376.0 376.0
114,0 114.0
134,0 134.0
376,0 376.0
0,418 0.418
91,9 91.9
-0,2 -0.2
20,0 20.0
293,0 293.0
40,0 40.0
291,0 291.0
376,0 376.0
0,621 0.621
92,1 92.1
2,2 2.2
15,8 15.8
346,8 346.8
77,2 77.2
200,0 200.0
376,0 376.0
0,508 0.508
92,0 92.0
0,9 0.9
17,8 17.8
573,0 573.0
24,0 24.0
27,0 27.0
376,0 376.0
* *
0,504 0.504
* *
* *
★ ★
Invention Invention
311,0 311.0
22.0 22.0
291,0 291.0
376,0 376.0
0,661 0.661
91,9 91.9
2,4 2.4
14,3 14.3
384,0 384.0
40,0 40.0
200,0 200.0
376,0 376.0
0,584 0.584
90,8 90.8
2,6 2.6
16,1 16.1
311,0 311.0
22,0 22.0
20,0 20.0
271,0 271.0
376,0 376.0
0,665 0.665
90,5 90.5
3,0 3.0
13,0 13.0
384,0 384.0
40,0 40.0
20,0 20.0
180,0 180.0
376,0 376.0
0,588 0.588
89,8 89.8
3,3 3.3
14,7 14.7
450,0 450.0
40,0 40.0
20,0 20.0
114,0 114.0
376,0 376.0
0,552 0.552
88,6 88.6
4,9 4.9
15,2 15.2
500,0 500.0
40,0 40.0
20,0 20.0
64,0 64.0
376,0 376.0
0,526 0.526
87,1 87.1
6,7 6.7
15,0 15.0
425,0 425.0
40,0 40.0
20,0 20.0
139,0 139.0
376,0 376.0
0,565 0.565
87,1 87.1
5,7 5.7
16,6 16.6
400,0 400.0
40,0 40.0
20,0 20.0
164,0 164.0
376,0 376.0
0,579 0.579
87,3 87.3
5,2* 5.2*
16,4 16.4
500,0 500.0
40,0 40.0
84,0 84.0
376,0 376.0
* *
0,523 0.523
★ ★
860 ‘Pas mesure 860 ‘Not measure
Tableau 1 Table 1
[0025] Ces calculs et tests montrent clairement que les alliages selon l'invention ont une bonne resistance ä la corrosion (potentiel electrochimique au-dessus de 0.52Volt), ainsi qu'une durete ä l'etat recuit permettant aisement leur deformation(entre 130 et 175 HV). Hs presentent tous une valeur a* dans l'intervalle 2-7 et une valeur b* dans l'intervalle 13-18. Enparticulier, l'alliage 856 presente une feinte 4N selon la norme ISO 8654 : 2019. These calculations and tests clearly show that the alloys according to the invention have good resistance to corrosion (electrochemical potential above 0.52 volts), as well as a hardness in the annealed state allowing them to be easily deformed (between 130 and 175 HV). Hs all have an a* value in the range 2-7 and a b* value in the range 13-18. In particular, the 856 alloy presents a 4N distortion according to the ISO 8654: 2019 standard.
Claims (14)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH01059/19A CH716523A2 (en) | 2019-08-23 | 2019-08-23 | 9 carat gold alloy for watchmaking, jewelery or jewelry. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH01059/19A CH716523A2 (en) | 2019-08-23 | 2019-08-23 | 9 carat gold alloy for watchmaking, jewelery or jewelry. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH716523A2 true CH716523A2 (en) | 2021-02-26 |
Family
ID=74667806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH01059/19A CH716523A2 (en) | 2019-08-23 | 2019-08-23 | 9 carat gold alloy for watchmaking, jewelery or jewelry. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH716523A2 (en) |
-
2019
- 2019-08-23 CH CH01059/19A patent/CH716523A2/en unknown
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