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Patents > IPCs : IPC B64C27/04 or IPC B64C37/00 & Number of claims: 1-2

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Inventors:
Alexis Beurrier (3) · Paul Cornu (3) · Édouard-Jean Bigourdan (3) · Jules Cornu (3) · Edmond-Louis Douhéret (3) · Félix Monin (2) · Jesse James Dillon (2) · Louis Lacoin (2) · Jules Collomb (2) · Désiré Sival (2)
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Alexis Beurrier (3) · Edmond-Louis Douhéret (3) · Jules Cornu (3) · Jesse James Dillon (2) · Louis Lacoin (2) · Désiré Sival (2) · Félix Monin (2) · Jules Collomb (2) · Paul Cornu (2)
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helicopter (26) · propellers (13) · Propulsion (10) · hybrid (10) · airplane (9) · None (8) · ascension (8) · design (6) · heavier-than-air (4) · helicoplane (3) · frame (3) · lift (3) · wings (3) · construction (3) · descent (3)
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