TREA

Lars G. Tingvall

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  • Smedjebacken, SE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Arrangement for fastening a roll-unit firmly to a roll stand
    • Patent number 5,657,660
    • Issue date Aug 19, 1997
    • Morgardshammar AB
    • Lars Tingvall
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Roll-pair drive arrangement
    • Patent number 5,649,441
    • Issue date Jul 22, 1997
    • Morgardshammar AB
    • Borje Granholm
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Equipment-holder bar for a rolling mill stand
    • Patent number 5,630,335
    • Issue date May 20, 1997
    • Danieli & C. Officine Meccaniche S.p.A.
    • Lars G. Tingvall
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...