TREA

Berthold Hiebl

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Patents Grantslast 30 patents

  • Information Patent Grant

    Goggles with interchangeable lenses
    • Patent number 4,689,838
    • Issue date Sep 1, 1987
    • Optyl Eyewear Fashion International Corporation
    • Gottfried Angermann
    • G02 - OPTICS
  • Information Patent Grant

    Sports goggle
    • Patent number 4,317,240
    • Issue date Mar 2, 1982
    • Carrera International Corporation
    • Gottfried Angerman
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE