TREA

Rottger Jansen-Herfeld

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  • Remscheid, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Circular saw blade
    • Patent number 4,574,676
    • Issue date Mar 11, 1986
    • Firma Rottger Jansen-Herfeld
    • Rottger Jansen-Herfeld
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Device for the straightening of thin metallic parts especially sheets
    • Patent number 4,220,035
    • Issue date Sep 2, 1980
    • Rottger Jansen-Herfeld
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Butcher's meat saw
    • Patent number 4,114,270
    • Issue date Sep 19, 1978
    • Schmid & Wezel
    • Rottger Jansen-Herfeld
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR