TREA

Karl Welpmann

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  • Koln, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Process for the manufacture of aluminum sheets
    • Patent number 5,292,386
    • Issue date Mar 8, 1994
    • Hoogovens Aluminium GmbH
    • Werner Schelb
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...