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Patents > Inventor country: US & National tech categories: USPC 244/22

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Office:
Inventors:
Bartholomew Connolly (2) · Ruter William Springer (2) · Charles I MATSON (2) · Julius Uherkovich de Uherkócz (2)
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Applicant person:
None (3) · Bartholomew Connolly (2) · Julius Uherkovich de Uherkocz (2) · MATSON Charles I (2)
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Applicant is inventor:
Tech fields:
flapping (21) · ornithopter (17) · None (17) · frame (17) · propulsion (15) · navigation (9) · airplane (8) · propeller (8) · hybrid (7) · rudder (7) · parachute (6) · wheels (4) · takeoff (4) · stability (4) · aerodrome (4) · landing (4) · wings (4)
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None (4)
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Citations from after 1930:

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