TREA

John C. Griggs

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  • St. Albans, GB
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Patents Grantslast 30 patents

  • Information Patent Grant

    Flushing cisterns
    • Patent number 4,646,369
    • Issue date Mar 3, 1987
    • National Research Development Corporation
    • Geoffrey J. Brown
    • E03 - WATER SUPPLY SEWERAGE
  • Information Patent Grant

    Urinals
    • Patent number 4,244,061
    • Issue date Jan 13, 1981
    • National Research Development Corporation
    • Cyril J. D. Webster
    • E03 - WATER SUPPLY SEWERAGE