TREA

Estate of Thomas E. Allen

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  • Tulsa, OK, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Straight through cement mixer
    • Patent number 8,511,887
    • Issue date Aug 20, 2013
    • Estate of Thomas E. Allen
    • Thomas E. Allen
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    Straight through cement mixer
    • Patent number 8,215,823
    • Issue date Jul 10, 2012
    • Estate of Thomas E. Allen
    • Thomas E. Allen
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    Straight through cement mixer
    • Patent number 8,192,070
    • Issue date Jun 5, 2012
    • Estate of Thomas E. Allen
    • Thomas E. Allen
    • B28 - WORKING CEMENT, CLAY, OR STONE