Rudolf Schaffer

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La Chaux-de-Fonds, CH

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Patents Grantslast 30 patents

Information Patent Grant
System for identification and determination of the moment of passag...
- Patent number 4,551,725
- Issue date Nov 5, 1985
- Compagnie des Montres Longines Francillon S.A.
- Rudolf Schaffer
- G07 - CHECKING-DEVICES