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G. Bosley Oilfield Services Ltd.

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  • Cherry Grove, Alberta, CA
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  • Information Patent Grant

    Pressure range delimited valve
    • Patent number 7,331,392
    • Issue date Feb 19, 2008
    • G. Bosley Oilfield Services Ltd.
    • Gordon F. Bosley
    • E21 - EARTH DRILLING MINING

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