TREA

Norbert Dautzenberg

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  • Wegberg, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Process for preparing a powder mixture and its use
    • Patent number 5,628,046
    • Issue date May 6, 1997
    • Mannesmann Aktiengesellschaft
    • Norbert Dautzenberg
    • B22 - CASTING POWDER METALLURGY
  • Information Patent Grant

    Making iron powder
    • Patent number 4,274,864
    • Issue date Jun 23, 1981
    • Mannesmann Aktiengesellschaft
    • Dieter Bernhardt
    • B22 - CASTING POWDER METALLURGY