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Patents Grantslast 30 patents

  • Information Patent Grant

    Carbon steel for machine structural use
    • Patent number 4,975,242
    • Issue date Dec 4, 1990
    • Honda Gikan Kogyo Kabushiki Kaisha
    • Toshiyuki Hoshino
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...