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Friedhelm Soffge

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  • Kornwestheim, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Floating bridge
    • Patent number 4,297,759
    • Issue date Nov 3, 1981
    • Dr. Ing. h.c.F. Porsche AG
    • Friedhelm Soffge
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES