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Patents > IPCs : IPC B64C2201/00 or IPC B64C27/04 & Family year: 1900 - 1909

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Inventors:
Désiré Sival (3) · Edwin Richard Mumford (2) · Charles Wolf (2) · Paul Cornu (2) · Félix Monin (2) · Émile Dupont (2) · Jules Cornu (2) · Jules Collomb (2)
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Applicant person:
Désiré Sival (3) · Jules Cornu (2) · Edwin Richard Mumford (2) · Charles Wolf (2) · Paul Cornu (2) · Félix Monin (2) · Émile Dupont (2) · Jules Collomb (2)
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Tech fields:
helicopter (18) · Propulsion (17) · propellers (14) · airplane (12) · design (7) · None (6) · Lift (6) · ascension (5) · frame (4) · hybrid (4) · wings (4) · Construction (3) · propeller (3) · whole (3) · parachutes (3) · navigation (3) · stability (3)
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Citations from after 1930:
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