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Alfons Frohlich

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Patents Grantslast 30 patents

  • Information Patent Grant

    Slide fastener
    • Patent number 4,084,297
    • Issue date Apr 18, 1978
    • OPTI Patent- Forschungs- und Fabrikations-AG
    • Alfons Frohlich
    • D03 - WEAVING
  • Information Patent Grant

    Woven slide fastener unit
    • Patent number 4,078,585
    • Issue date Mar 14, 1978
    • OPTI Patent- Forschungs- und Fabrikations-AG
    • Alfons Frohlich
    • D03 - WEAVING
  • Information Patent Grant

    Slide fastener
    • Patent number 4,058,145
    • Issue date Nov 15, 1977
    • OPTI Patent-, Forschungs- und Fabrikations-AG
    • Alfons Frohlich
    • A44 - HABERDASHERY JEWELLERY
  • Information Patent Grant

    Warp-knit support tape for slide-fastener stringer
    • Patent number 4,002,045
    • Issue date Jan 11, 1977
    • Opti-Holding AG
    • Alfons Frohlich
    • A44 - HABERDASHERY JEWELLERY
  • Information Patent Grant

    Slide-fastener stringer with warp-knit support tapes
    • Patent number 3,965,833
    • Issue date Jun 29, 1976
    • Opti-Holding AG
    • Alfons Frohlich
    • A44 - HABERDASHERY JEWELLERY