TREA

Christian Stiefel

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  • Aachen, 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

    Arrangement for resilient absorption of forces
    • Patent number 4,260,142
    • Issue date Apr 7, 1981
    • Ringfeder G.m.b.H.
    • Christian Stiefel
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Passenger evacuation apparatus
    • Patent number 4,164,990
    • Issue date Aug 21, 1979
    • Waggonfabrik Uerdingen Aktiengesellschaft
    • Christian Stiefel
    • B66 - HOISTING LIFTING HAULING