TREA

Hehl; Karl

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  • Lossburg, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Drawing tool
    • Patent number 4,909,061
    • Issue date Mar 20, 1990
    • Hehl; Karl
    • Erhardt Reitter
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Hydraulic element and drawing die assembly
    • Patent number 4,796,453
    • Issue date Jan 10, 1989
    • Hehl; Karl
    • Erhardt Reitter
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...

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