Joel PERRET

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Le Locle, CH

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Patents Grantslast 30 patents

Information Patent Grant
Method of fabrication of a black watch dial, and said black watch dial
- Patent number 11,036,184
- Issue date Jun 15, 2021
- FEHR et Cie SA
- Joël Perret
- B32 - LAYERED PRODUCTS

Patents Applicationslast 30 patents

Information Patent Application
METHOD OF FABRICATION OF A BLACK WATCH DIAL, AND SAID BLACK WATCH DIAL
- Publication number 20180157214
- Publication date Jun 7, 2018
- FEHR et Cie SA
- Joel PERRET
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...