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N. Washington Keane

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Patents Grantslast 30 patents

  • Information Patent Grant

    Rigid polyurethane foams
    • Patent number 5,346,928
    • Issue date Sep 13, 1994
    • Imperial Chemical Industries PLC
    • Rik De Vos
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...