TREA

Karlheinz Schafer

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  • Neustadt, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Device for the welding of plastic foil
    • Patent number 4,923,558
    • Issue date May 8, 1990
    • Pfaff Industriemaschinen, GmbH
    • Bernd Ellenberger
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Welding machine for foil webs
    • Patent number 4,744,855
    • Issue date May 17, 1988
    • Pfaff Industriemaschinen G.m.b.H.
    • Bernd Ellenberger
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL