TREA

Karl-Heinz Brensing

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  • Dusseldorf, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Diagonal rolling of hollow stock
    • Patent number 4,392,369
    • Issue date Jul 12, 1983
    • Mannesmann Aktiengesellschaft
    • Detlef Ramdohr
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...