TREA

Gerd Halbherr

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  • Bochum, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Reversing valve
    • Patent number 4,664,140
    • Issue date May 12, 1987
    • Dr. C. Otto & Comp. G.m.b.H.
    • Gerd Halbherr
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...