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Jeff D. Berryhill

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  • Essen, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Elevator control systems
    • Patent number 9,957,132
    • Issue date May 1, 2018
    • Thyssenkrupp Elevator AG
    • Jeff D. Berryhill
    • B66 - HOISTING LIFTING HAULING

Patents Applicationslast 30 patents