TREA

Frank E. Critchfeld

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  • South Charleston, WV, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Soft, low density flexible polyurethane foam
    • Patent number 5,500,452
    • Issue date Mar 19, 1996
    • ARCO Chemical Technology, L.P.
    • Otis M. Baker
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...