TREA

Francis R. Duerr

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  • Louisville, KY, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Extrusion die
    • Patent number 4,465,454
    • Issue date Aug 14, 1984
    • Corning Glass Works
    • Francis R. Duerr
    • B28 - WORKING CEMENT, CLAY, OR STONE