Siegfried Piontek

Person

  • Wuppertal, DE

Patents Grantslast 30 patents

  • Information Patent Grant

    Small glass cutting wheel

    • Patent number 8,844,421
    • Issue date Sep 30, 2014
    • Bohle AG
    • Heinrich Ostendarp
    • C03 - GLASS MINERAL OR SLAG WOOL

Patents Applicationslast 30 patents