TREA

Fredrich M. Christensen

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  • Omaha, NB, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Apparatus for draining a cooling system
    • Patent number 4,231,384
    • Issue date Nov 4, 1980
    • Fredrich M. Christensen
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Apparatus for draining a cooling system
    • Patent number 4,126,108
    • Issue date Nov 21, 1978
    • Fredrich M. Christensen
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Seat back tilt control unit
    • Patent number 4,040,663
    • Issue date Aug 9, 1977
    • Fredrich M. Christensen
    • B60 - VEHICLES IN GENERAL