TREA

Norbert Stephan

Follow

Person

  • Hanover, DT
People

Patents Grantslast 30 patents

  • Information Patent Grant

    Method and apparatus for drawing tubes
    • Patent number 4,096,726
    • Issue date Jun 27, 1978
    • Marshall Richards Barcro Limited
    • Otto Uhlmann
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Tube drawing method and apparatus
    • Patent number 4,092,875
    • Issue date Jun 6, 1978
    • Marshall Richards Barcro Limited
    • Otto Uhlmann
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Drawing of elongated stock
    • Patent number 3,950,977
    • Issue date Apr 20, 1976
    • Kabel-und Metallwerke Gutehoffnungshutte Aktiengesellschaft
    • Otto Uhlmann
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Method of making seamless metal tubes
    • Patent number 3,942,352
    • Issue date Mar 9, 1976
    • Kabel-und Metallwerke Gutehoffnungshutte AG
    • Walter Langhans
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Drawing elongated stock, such as copper tubing
    • Patent number 3,934,449
    • Issue date Jan 27, 1976
    • Kabel-und Metallwerke Gutehoffnungshutte Aktiengesellschaft
    • Otto Uhlmann
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...