TREA

John W. E. Campbell

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  • Maidenhead, GB
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Patents Grantslast 30 patents

  • Information Patent Grant

    Boiler safety valve installations
    • Patent number 4,612,958
    • Issue date Sep 23, 1986
    • Babcock Power Limited
    • John W. E. Campbell
    • F22 - STEAM GENERATION
  • Information Patent Grant

    Boilers
    • Patent number 4,387,577
    • Issue date Jun 14, 1983
    • Babcock Power Limited
    • John W. E. Campbell
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES