TREA

Theodore W. Spaetgens

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  • Vancouver, B.C., CA
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Patents Grantslast 30 patents

  • Information Patent Grant

    Tuned torsional vibration damper
    • Patent number 4,160,390
    • Issue date Jul 10, 1979
    • Theodore W. Spaetgens
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...