TREA

Frederick D. Ferguson

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  • Ottawa, Ontario, CA
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Patents Grantslast 30 patents

  • Information Patent Grant

    Dirigible airship
    • Patent number 5,348,251
    • Issue date Sep 20, 1994
    • Frederick D. Ferguson
    • B64 - AIRCRAFT AVIATION COSMONAUTICS
  • Information Patent Grant

    Aircraft having buoyant gas balloon
    • Patent number 4,366,936
    • Issue date Jan 4, 1983
    • Frederick D. Ferguson
    • B64 - AIRCRAFT AVIATION COSMONAUTICS
  • Information Patent Grant

    Aircraft having buoyant gas balloon
    • Patent number 4,365,772
    • Issue date Dec 28, 1982
    • Frederick D. Ferguson
    • B64 - AIRCRAFT AVIATION COSMONAUTICS