TREA

Harold A. Keller

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  • Clarkston, WA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Pruning cutter
    • Patent number 5,718,050
    • Issue date Feb 17, 1998
    • Technic Tool Corporation
    • Harold A. Keller
    • B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...
  • Information Patent Grant

    Extendible shaft assembly for portable tools
    • Patent number 5,013,282
    • Issue date May 7, 1991
    • Technic Tool Corporation
    • Harold A. Keller
    • B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...
  • Information Patent Grant

    Spring assembly for ball throwing machines
    • Patent number 4,249,508
    • Issue date Feb 10, 1981
    • Cytron, Inc.
    • Harold A. Keller
    • A63 - SPORTS GAMES AMUSEMENTS
  • Information Patent Grant

    Spring type ball throwing machine
    • Patent number 4,220,130
    • Issue date Sep 2, 1980
    • Cytron Incorporated
    • Clinton G. Glover
    • A63 - SPORTS GAMES AMUSEMENTS
  • Information Patent Grant

    Apparatus and method for controlling press racking
    • Patent number 4,096,796
    • Issue date Jun 27, 1978
    • Potlatch Corporation
    • Robert J. Saunders
    • B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...