TREA

Ann Margaret Driver

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  • Lancshire, GB
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Patents Grantslast 30 patents

  • Information Patent Grant

    Rotary positive displacement fluid machine
    • Patent number 6,226,986
    • Issue date May 8, 2001
    • Driver Technology Ltd.
    • Ronald William Driver
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES