TREA

Harry J. Brown

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  • Barrackville, WV, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Apparatus for mining
    • Patent number 4,957,405
    • Issue date Sep 18, 1990
    • Consolidation Coal Company
    • Margaret A. Roberts
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Mine haulage method and apparatus
    • Patent number 4,798,279
    • Issue date Jan 17, 1989
    • Consolication Coal Company
    • Richard E. Doerr
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL