Katsutoshi Betsuki

Person

  • Aichi, JP

Patents Grantslast 30 patents

  • Information Patent Grant

    Artificial joint

    • Patent number 4,685,919
    • Issue date Aug 11, 1987
    • NGK Spark Plug Co., Ltd.
    • Shigeo Niwa
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE