TREA

John Allen

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  • Clarkston, MI, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Bolt including a cleaning thread point tip
    • Patent number 5,667,443
    • Issue date Sep 16, 1997
    • Ring Screw Works
    • John Allen
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Bolt including a cleaning thread point tip
    • Patent number 5,499,895
    • Issue date Mar 19, 1996
    • Ring Screw Works
    • John Allen
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Bolt including a cleaning thread point tip
    • Patent number 5,374,146
    • Issue date Dec 20, 1994
    • Ring Screw Works
    • John Allen
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...