TREA

Ernest W. Billingham

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  • Birmingham, GB
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Patents Grantslast 30 patents

  • Information Patent Grant

    Screw for contaminated pre-tapped holes
    • Patent number 5,000,638
    • Issue date Mar 19, 1991
    • Conti Fasteners AG
    • Charles J. Essom
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Screw for contaminated pre-tapped holes
    • Patent number 4,973,209
    • Issue date Nov 27, 1990
    • Conti Fasteners AG
    • Charles J. Essom
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...