TREA

G. Robert Hartranft

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  • Lancaster, PA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Thermal foam insulation
    • Patent number 5,457,136
    • Issue date Oct 10, 1995
    • Armstrong World Industries, Inc.
    • G. Robert Hartranft
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...