Franz Hochlehnert

Person

  • Essen, DT

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