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Klas Ralvert

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  • Karlshamn, SE
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Patents Grantslast 30 patents

  • Information Patent Grant

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    • Patent number 5,076,924
    • Issue date Dec 31, 1991
    • Hydrotech Nils-Ake Persson AB
    • Nils-Ake Persson
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL