Alfred Joss

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Romont, CH

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Patents Grantslast 30 patents

Information Patent Grant
Device for fastening a rotationally symmetrical part, in particular...
- Patent number 5,654,941
- Issue date Aug 5, 1997
- Walca SA
- Alfred Joss
- G04 - HOROLOGY
Information Patent Grant
Watch having a fluid-tight rotary crystal or crystal-bezel unit
- Patent number 5,521,889
- Issue date May 28, 1996
- Walca SA
- Renato Scarinzi
- G04 - HOROLOGY