Pierre-Alain Walder

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Confignon, CH

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Patents Grantslast 30 patents

Information Patent Grant
Self-compensating balance spring for a mechanical oscillator of a b...
- Patent number 5,881,026
- Issue date Mar 9, 1999
- Montres Rolex S.A.
- Jacques Baur
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...