TREA

William R. Dirk

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  • Fort Worth, TX, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Compressor muffling arrangement
    • Patent number 4,061,444
    • Issue date Dec 6, 1977
    • Lennox Industries, Inc.
    • William R. Dirk
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Compressor valving
    • Patent number 3,944,381
    • Issue date Mar 16, 1976
    • Lennox Industries Inc.
    • William R. Dirk
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...