TREA

Jack D. Harrel

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  • Waynesboro, PA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Cylindrical grinding machine
    • Patent number 4,402,161
    • Issue date Sep 6, 1983
    • Litton Industrial Products, Inc.
    • Ralph E. Price
    • G05 - CONTROLLING REGULATING
  • Information Patent Grant

    Regulated power supply
    • Patent number 4,054,830
    • Issue date Oct 18, 1977
    • Landis Tool Company
    • Jack D. Harrel
    • G05 - CONTROLLING REGULATING
  • Information Patent Grant

    Machine tool control system
    • Patent number 3,934,185
    • Issue date Jan 20, 1976
    • Landis Tool Company
    • Stanley C. Schoonover
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR