TREA

Carl-Erich Proll

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  • Hagen, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Device for bending and hardening bar material
    • Patent number 4,294,102
    • Issue date Oct 13, 1981
    • Proll & Lohmann Betriebs GmbH
    • Lothar Luckert
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...