TREA

Graham W. Hall

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  • Cheltenham, GB
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Patents Grantslast 30 patents

  • Information Patent Grant

    Sealant material
    • Patent number 4,277,568
    • Issue date Jul 7, 1981
    • Coal Industry (Patents) Limited
    • Joseph A. Davison
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Sealant material
    • Patent number 4,251,413
    • Issue date Feb 17, 1981
    • Coal Industry (Patents) Limited
    • Joseph A. Davison
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...