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Tail rotor assembly
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Patent number 11,148,796
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Issue date Oct 19, 2021
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Textron Innovations Inc.
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Albert Gerard Brand
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B64 - AIRCRAFT AVIATION COSMONAUTICS
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Helicopter control system
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Patent number 4,768,737
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Issue date Sep 6, 1988
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PBSystems, Inc.
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William D. Broadley
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B64 - AIRCRAFT AVIATION COSMONAUTICS
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Helicopters
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Patent number 4,347,997
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Issue date Sep 7, 1982
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Westland Aircraft Limited
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Geoffrey M. Byham
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B64 - AIRCRAFT AVIATION COSMONAUTICS
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2788075
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Patent number 2,788,075
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Issue date Apr 9, 1957
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B64 - AIRCRAFT AVIATION COSMONAUTICS
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2702084
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Patent number 2,702,084
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Issue date Feb 15, 1955
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B64 - AIRCRAFT AVIATION COSMONAUTICS
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2672939
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Patent number 2,672,939
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Issue date Mar 23, 1954
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B64 - AIRCRAFT AVIATION COSMONAUTICS
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2613748
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Patent number 2,613,748
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Issue date Oct 14, 1952
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B64 - AIRCRAFT AVIATION COSMONAUTICS
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2604949
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Patent number 2,604,949
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Issue date Jul 29, 1952
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B64 - AIRCRAFT AVIATION COSMONAUTICS
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2496624
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Patent number 2,496,624
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Issue date Feb 7, 1950
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B64 - AIRCRAFT AVIATION COSMONAUTICS
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2420784
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Patent number 2,420,784
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Issue date May 20, 1947
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B64 - AIRCRAFT AVIATION COSMONAUTICS