Category:Harold Frederick Pitcairn

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English: Harold F. Pitcairn (1897–1960) was an American aviation inventor and pioneer. He played a key role in the development of the autogyro and founded the Autogiro Company of America. He invented many patents relating to rotary wing aircraft.
Italiano: Figlio di un industriale di Pittsburgh, ha iniziato il suo interesse per l'aviazione fin dal primo volo dei fratelli Wright nel 1903.

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