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Werner Zuchner

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  • Hamburg, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Writing fluid cartridge
    • Patent number 4,221,496
    • Issue date Sep 9, 1980
    • Mesne Koh-I-Noor Rapidograph, Inc.
    • Gerold Anderka
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Reservoir cartridge for writing pens
    • Patent number 4,217,058
    • Issue date Aug 12, 1980
    • Koh-I-Noor Rapidograph, Inc.
    • Klaus Straszewski
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Sealing element for an automatic drafting pen
    • Patent number 4,173,021
    • Issue date Oct 30, 1979
    • Koh-I-Noor Rapidograph, Inc.
    • Werner Zuchner
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES