TREA

James E. Lawrence Jr.

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  • Coshocton, OH, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Method of making composite pipe having an integral bell end
    • Patent number 4,290,836
    • Issue date Sep 22, 1981
    • Clow Corporation
    • Alex L. McPherson
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Composite pipe
    • Patent number 4,243,075
    • Issue date Jan 6, 1981
    • Clow Corporation
    • Alex L. McPherson
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Composite pipe having an integral bell end
    • Patent number 4,240,470
    • Issue date Dec 23, 1980
    • Clow Corporation
    • Alex L. McPherson
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...