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Henry Ryffel

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  • Hillsboro, NH, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Pancake planetary drive
    • Patent number 4,282,777
    • Issue date Aug 11, 1981
    • COMPUDRIVE Corporation
    • Henry Ryffel
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Planetary transmission
    • Patent number 4,271,726
    • Issue date Jun 9, 1981
    • COMPUDRIVE Corporation
    • Henry Ryffel
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...