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Hendrik J. G. Siegrest

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  • Spaarndam, NL
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Patents Grantslast 30 patents

  • Information Patent Grant

    Liquid-flow control apparatus
    • Patent number 4,905,744
    • Issue date Mar 6, 1990
    • Elopak A/S
    • Hendrik J. G. Siegrest
    • B67 - OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS LIQUID...