TREA

Friedrich W. Baethke

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  • Chicago, IL, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Shaft coupling device
    • Patent number 4,416,563
    • Issue date Nov 22, 1983
    • Bell & Howell Company
    • Edward H. Zemke
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...