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Hans-Georg Nieder-Vahrenholz

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  • Cologne, DT
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Patents Grantslast 30 patents

  • Information Patent Grant

    Alkaline disintegration of chromites
    • Patent number 4,066,734
    • Issue date Jan 3, 1978
    • Bayer Aktiengesellschaft
    • Wolfgang Bockelmann
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...