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Norbert Dautzenberg

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  • Meerbusch, DT
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Patents Grantslast 30 patents

  • Information Patent Grant

    Sinter material for sealing strips in rotary piston engines
    • Patent number 4,011,054
    • Issue date Mar 8, 1977
    • Goetzewerke-Friedrich Goetze AG
    • Horst Beyer
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Method of making iron powder
    • Patent number 3,975,186
    • Issue date Aug 17, 1976
    • Mannesmann Aktiengesellschaft
    • Klaus Grebe
    • B22 - CASTING POWDER METALLURGY
  • Information Patent Grant

    Method of making dummy bullets
    • Patent number 3,951,035
    • Issue date Apr 20, 1976
    • Nederlandsche Wapen-en Munitiefabriek De Kruithoorn N.V.
    • Norbert Dautzenberg
    • F42 - AMMUNITION BLASTING