TREA

Pierre E. Arias

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  • Margency, FR
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Patents Grantslast 30 patents

  • Information Patent Grant

    Self-retaining spring washer
    • Patent number 4,300,866
    • Issue date Nov 17, 1981
    • TRW Inc.
    • Charles K. Fisher
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...