TREA

Hiroyasu Ogawa

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  • Hitachi, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Escalator
    • Patent number 4,682,681
    • Issue date Jul 28, 1987
    • Hitachi, Ltd.
    • Katsuya Teranishi
    • B66 - HOISTING LIFTING HAULING