TREA

Friedrich Theysohn

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  • Hanover, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Dual worm extruder having wear resistant bore walls
    • Patent number 4,364,664
    • Issue date Dec 21, 1982
    • Firma Friedrich Theysohn
    • Friedrich Theysohn
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Method of coating dual-worm extruder bores
    • Patent number 4,327,859
    • Issue date May 4, 1982
    • Firma Friedrich Theysohn
    • Friedrich Theysohn
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL