TREA

James T. Hartman

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  • Reading, PA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Method and apparatus for welding metallic parts
    • Patent number 4,672,167
    • Issue date Jun 9, 1987
    • General Battery Corporation
    • Robert Preg
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Precipitator voltage control system
    • Patent number 4,267,502
    • Issue date May 12, 1981
    • Envirotech Corporation
    • Robert O. Reese
    • B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES O...