TREA

Jean-Claude Robert-Grandpierre

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  • Colombier, CH
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Patents Grantslast 30 patents

  • Information Patent Grant

    Multifunction timepiece
    • Patent number 4,398,832
    • Issue date Aug 16, 1983
    • Compagnie des Montres Longines Francillon S.A.
    • Aurele Maire
    • G04 - HOROLOGY
  • Information Patent Grant

    Electronic circuit for electronic watch
    • Patent number 4,130,988
    • Issue date Dec 26, 1978
    • Ebauches S.A.
    • Igor Scherrer
    • G04 - HOROLOGY
  • Information Patent Grant

    Electronic digital watch
    • Patent number 4,128,991
    • Issue date Dec 12, 1978
    • Ebauches S.A.
    • Jean-Claude Robert-Grandpierre
    • G04 - HOROLOGY