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Paul W. Kao

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  • Covina, CA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Bevel pipe winding method and product
    • Patent number 3,964,521
    • Issue date Jun 22, 1976
    • United States Pipe and Foundry Company
    • Paul W. Kao
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    Bevel pipe winder
    • Patent number 3,964,522
    • Issue date Jun 22, 1976
    • United States Pipe and Foundry Company
    • Paul W. Kao
    • B28 - WORKING CEMENT, CLAY, OR STONE