TREA

Ingvar S. Sjoovist

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  • Sorunda, SE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Acoustic ear muff
    • Patent number 4,944,361
    • Issue date Jul 31, 1990
    • AB Kompositprodukter S.K.-F.M.
    • Mats E. G. Lindgren
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE