TREA

Robert R. Williams

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  • San Dimas, CA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Filtering system for swimming pools or the like
    • Patent number 4,134,836
    • Issue date Jan 16, 1979
    • Wylain, Inc.
    • William N. Rowley
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Liquid distributor valve assembly
    • Patent number 4,077,424
    • Issue date Mar 7, 1978
    • Wylain, Inc.
    • Gordon F. Ehret
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Liquid filter apparatus
    • Patent number 4,043,917
    • Issue date Aug 23, 1977
    • Weil-McLain Company, Inc.
    • William N. Rowley
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL