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Patents > IPCs : IPC B64C17/00 or IPC B64C33/00 & Number of diagram pages: 4-20000000

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Office:
Inventors:
Alfred John Macy (4) · Adolf Sprater (2) · Théophile-Alfred-Émilien Seutin père (2) · Richard A. Engler (2) · Casimir-Louis Achard (2) · Léon-Émilien Seutin fils (2) · Frederick William Dufwa (2)
Inventor country:
Applicant person:
Alfred John Macy (4) · Adolf Sprater (2) · Théophile-Alfred-Émilien Seutin père (2) · Richard A. Engler (2) · Frederick William Dufwa (2) · Casimir-Louis Achard (2) · Léon-Émilien Seutin fils (2)
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Tech fields:
stability (31) · airplane (13) · automatic stability (8) · None (6) · frame (6) · design (6) · propeller (5) · control (4) · ornithopter (4) · flapping (4) · wings (4) · whole (3) · rudder (3) · balance (3) · navigation (3)
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