TREA

Hans O. Olsson

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  • Ostersund, SE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Coupling assembly
    • Patent number 4,303,150
    • Issue date Dec 1, 1981
    • Hans O. Olsson
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Lockable swivel coupling
    • Patent number 4,188,142
    • Issue date Feb 12, 1980
    • Hans O. Olsson
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Sealing device
    • Patent number 4,165,880
    • Issue date Aug 28, 1979
    • Hans O. Olsson
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...