TREA

Rolla J. Boyer

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  • Whittier, CA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Method of making improved spring seal
    • Patent number 4,261,192
    • Issue date Apr 14, 1981
    • Robert Janian
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Spring seal
    • Patent number 4,133,542
    • Issue date Jan 9, 1979
    • Robert Janian
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...