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Peter Hirsch

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  • Aachen-Laurenzberg, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Welding apparatus
    • Patent number 4,420,676
    • Issue date Dec 13, 1983
    • Eichhorn; Friedrich
    • Peter Hirsch
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Apparatus for welding steel sheets
    • Patent number 4,303,822
    • Issue date Dec 1, 1981
    • Eichhorn; Friedrich
    • Peter Hirsch
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Method of and apparatus for welding sheet steel panels
    • Patent number 4,151,389
    • Issue date Apr 24, 1979
    • Eichhorn; Friedrich
    • Peter Hirsch
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR