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Donald N. Meyers
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Philadelphia, PA, US
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last 30 patents
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Patent Grant
Rotary wing aircraft split segmented duct shrouded propeller tail a...
Patent number
5,131,603
Issue date
Jul 21, 1992
Piasecki Aircraft Corporation
Donald N. Meyers
B64 - AIRCRAFT AVIATION COSMONAUTICS
Information
Patent Grant
Vectored thrust airship
Patent number
4,591,112
Issue date
May 27, 1986
Piasecki Aircraft Corporation
Frank N. Piasecki
B64 - AIRCRAFT AVIATION COSMONAUTICS
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Patent Grant
Vertical take-off aircraft
Patent number
4,071,207
Issue date
Jan 31, 1978
Piasecki Aircraft Corporation
Frank N. Piasecki
B64 - AIRCRAFT AVIATION COSMONAUTICS