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Subject
- Airplanes--Design and construction.[remove]7
- Aeronautics--Records.2
- Aeronautics.2
- Air pilots.2
- Propeller-driven aircraft.2
- Aeronautics, Commercial.1
- Aeronautics--New York (State)1
- Air pilots--France.1
- Airplanes--Maintenance and repair.1
- Aviation mechanics (Persons)1
- Biplanes.1
- Blériot, Louis, 1872-1936.1
- Engineers.1
- Inventions.1
- Pilots--United States.1
- Propellers.1
- Sikorsky, Igor Ivan, 1889-1972.1