TREA

Alf Hugo Karlsson

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  • Njurunda, SW
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Patents Grantslast 30 patents

  • Information Patent Grant

    Method of preparing size
    • Patent number 3,961,976
    • Issue date Jun 8, 1976
    • SCA Development Aktiebolag
    • Alf Hugo Karlsson
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Process for preparation of lignin resin
    • Patent number 3,940,352
    • Issue date Feb 24, 1976
    • AB Casco
    • Axel Bengt Wennerblom
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...