TREA

John Frederick Harkness

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  • Newbury, GB
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Patents Grantslast 30 patents

  • Information Patent Grant

    Liquid-sensing apparatus and method
    • Patent number 5,691,466
    • Issue date Nov 25, 1997
    • J.T.L. Systems Ltd.
    • John Michael Walmsley Lawrence
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...