TREA

Gunnar Parmann

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  • Alvoen, NO
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Patents Grantslast 30 patents

  • Information Patent Grant

    Method for forming an end portion of a plastic pipe
    • Patent number 4,975,234
    • Issue date Dec 4, 1990
    • Forsheda AB
    • Gunnar Parmann
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Apparatus for forming an end portion of a plastic pipe
    • Patent number 4,847,094
    • Issue date Jul 11, 1989
    • Forsheda AB
    • Gunnar Parmann
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Mould and sealing ring
    • Patent number 4,818,209
    • Issue date Apr 4, 1989
    • Forsheda AB
    • Stefan Petersson
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL