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Hans Zweifel

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Patents Grantslast 30 patents

  • Information Patent Grant

    Draw roller with adjustable pull ring
    • Patent number 6,966,475
    • Issue date Nov 22, 2005
    • Maschinenfabrik Wifag
    • Hans Zweifel
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL

Patents Applicationslast 30 patents

  • Information Patent Application

    Draw roller with adjustable pull ring
    • Publication number 20040050895
    • Publication date Mar 18, 2004
    • Hans Zweifel
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL