TREA

David C. Cooper

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  • Oakville, CA
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Patents Grantslast 30 patents

  • Information Patent Grant

    Prevailing torque nut
    • Patent number 4,509,220
    • Issue date Apr 9, 1985
    • Stelco Inc.
    • David C. Cooper
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...