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Raymond Michael DeVial

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  • Beckenham, EN
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Patents Grantslast 30 patents

  • Information Patent Grant

    Flow control device
    • Patent number 3,990,815
    • Issue date Nov 9, 1976
    • Bailey Meters & Controls Limited
    • Raymond Michael DeVial
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES