TREA

Josef Friedrichs

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  • Krefeld-Verberg, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Arrangement for resilient absorption of forces
    • Patent number 4,428,565
    • Issue date Jan 31, 1984
    • Ringfeder G.m.b.H.
    • Christian Stiefel
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Force absorbing arrangement
    • Patent number 4,282,979
    • Issue date Aug 11, 1981
    • Ringfeder G.m.b.H.
    • Josef Friedrichs
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...