TREA

Wayne Crockett

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  • Spokane, WA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Mineral jig apparatus
    • Patent number 5,203,461
    • Issue date Apr 20, 1993
    • R. A. Hanson Company, Inc.
    • Raymond A. Hanson
    • B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES O...
  • Information Patent Grant

    Dredging apparatus
    • Patent number 4,999,934
    • Issue date Mar 19, 1991
    • R. A. Hanson Company, Inc.
    • Raymond A. Hanson
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Cam actuated mineral jig
    • Patent number 4,849,097
    • Issue date Jul 18, 1989
    • R. A. Hanson Company, Inc.
    • Raymond A. Hanson
    • B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES O...