TREA

Robert W. Birckhead

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  • Pompano Beach, FL, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Staggered teeth plate
    • Patent number 4,737,060
    • Issue date Apr 12, 1988
    • Robert W. Birckhead
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Method of forming truss plates
    • Patent number 4,625,535
    • Issue date Dec 2, 1986
    • Robert W. Birckhead
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Method of manufacturing a connector plate, connector plate and mach...
    • Patent number 4,549,838
    • Issue date Oct 29, 1985
    • Alpine Engineered Products, Inc.
    • Robert W. Birckhead
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...