TREA

Sigurd Schwanenberg

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  • Luzern, CH
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Patents Grantslast 30 patents

  • Information Patent Grant

    Closure membrane and closure employing same
    • Patent number 6,213,355
    • Issue date Apr 10, 2001
    • Zeller Plastik GmbH
    • Sigurd Schwanenberg
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Self-closing seal with a sealing membrane
    • Patent number 6,095,381
    • Issue date Aug 1, 2000
    • Zeller Plastik GmbH
    • Sigurd Schwanenberg
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL