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Patents > Grant date: 1910 - 1919 & CPCs: CPC B64C2700/6281 & First filing : No or Other

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Inventors:
None (8) · Edmond-Louis Douhéret (3) · Charles Wolf (2) · Travers Glynn Ivon Ayers (2) · Peter Pitcairn Carmichael (2) · Jesse James Dillon (2) · James Robertson Porter (2) · William Everett Sylvester Coyne (2)
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None (8) · Edmond-Louis Douhéret (3) · James Robertson Porter (2) · Charles Wolf (2) · Peter Pitcairn Carmichael (2) · Jesse James Dillon (2) · Travers Glynn Ivon Ayers (2)
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None (33) · helicopter (26) · propulsion (12) · hybrid (11) · design (10) · propellers (9) · airplane (7) · ascension (6) · lift (5) · control (4) · HTA (4) · sustentation (4) · wings (4) · construction (4) · Frame (4) · gyroscope (3) · heavier-than-air (3) · Helicoplane (3) · stability (3)
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