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Dennis A. Duffy

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  • Lakewood, CA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Brake wear sensor
    • Patent number 4,562,421
    • Issue date Dec 31, 1985
    • Dennis A. Duffy
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...