TREA

Thomas R. Walker

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  • Mars, PA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Rail lubrication apparatus
    • Patent number 5,394,958
    • Issue date Mar 7, 1995
    • Portec Inc.
    • Ronald K. Junk
    • B61 - RAILWAYS
  • Information Patent Grant

    Rail lubrication apparatus
    • Patent number 5,348,120
    • Issue date Sep 20, 1994
    • Portec Inc.
    • Ronald K. Junk
    • B61 - RAILWAYS