Pierre Tschanz

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8700 Kusnacht, CH

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Patents Grantslast 30 patents

Information Patent Grant
Watch adaptable to being worn on the wrist and around the neck
- Patent number 4,976,548
- Issue date Dec 11, 1990
- Pierre Tschanz
- A44 - HABERDASHERY JEWELLERY
Information Patent Grant
Bracelet for the jewelry and watch making industry
- Patent number 4,671,055
- Issue date Jun 9, 1987
- Pierre Tschanz
- A44 - HABERDASHERY JEWELLERY
Information Patent Grant
World watch
- Patent number 4,347,594
- Issue date Aug 31, 1982
- Pierre Tschanz
- G04 - HOROLOGY