TREA

LEFCO WESTERN, INC.

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Organization

  • HOUSTON, TX, US
Organizations

Patents Grantslast 30 patents

  • Information Patent Grant

    Pumping system with air conveyance and method
    • Patent number 4,659,293
    • Issue date Apr 21, 1987
    • Lefco Western, Inc.
    • William R. Evenson
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Evacuated pumping system
    • Patent number 4,613,290
    • Issue date Sep 23, 1986
    • Lefco Western, Inc.
    • William R. Evenson
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...

Patents Applicationslast 30 patents

Trademarklast 30 trademarks

  • Information Trademark

    73616325 - SLUDGE BUSTERS
    • Serial number 73616325
    • Filing date Aug 25, 1986
    • LEFCO WESTERN, INC.
    • 37 - Building construction