TREA

Burghardt Neas

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  • Essen, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Manufacture of slide fasteners
    • Patent number 4,932,113
    • Issue date Jun 12, 1990
    • Opti Patent-, Forschungs- und Fabrikations-AG
    • Alfons Frohlich
    • A44 - HABERDASHERY JEWELLERY