TREA

Dirk Retzkowski

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  • Gelsenkirchen, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Polygonal cotting insert
    • Patent number 5,951,215
    • Issue date Sep 14, 1999
    • Widia GmbH
    • Jose Agustin Paya
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Cutting insert
    • Patent number 5,779,401
    • Issue date Jul 14, 1998
    • Widia GmbH
    • Erwin Stallwitz
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR