TREA

Klaus Frietsch

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  • Schramberg, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Method for edge rounding of springs
    • Patent number 5,189,278
    • Issue date Feb 23, 1993
    • Hugo Kern & Liebers GmbH & Co. Platinen- und Federnfabrik
    • Klaus Frietsch
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Writing implement
    • Patent number 4,776,718
    • Issue date Oct 11, 1988
    • Schmidt Feintechnik GmbH
    • Werner Heinzmann
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Ink writing or drawing instrument
    • Patent number 4,770,558
    • Issue date Sep 13, 1988
    • Gebr. Schmidt KG Fabrik Fuer Feinmechanik
    • Klaus Frietsch
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES