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LONGWORTH ENGINEERING LTD

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  • BLACKBURN, GB
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  • Information Patent Grant

    Cleaning filter components
    • Patent number 7,799,144
    • Issue date Sep 21, 2010
    • Longworth Engineering Ltd.
    • Peter John Norris
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

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