TREA

Sinji Mitsuhashi

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  • Yokohama, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Vacuum evacuation system
    • Patent number 4,797,068
    • Issue date Jan 10, 1989
    • Hitachi, Ltd.
    • Tadashi Hayakawa
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...