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Patents > Inventor country: US & National tech categories : BE K or DE 77h or USPC 244/22

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Office:
Inventors:
Ruter William Springer (2) · Charles I MATSON (2) · Bartholomew Connolly (2) · Julius Uherkovich de Uherkocz (2)
Inventor country: (Click arrow to add another value)
Applicant person:
None (5) · MATSON Charles I (2) · Bartholomew Connolly (2) · Julius Uherkovich de Uherkócz (2)
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Applicant is inventor:
Tech fields:
flapping (21) · frame (19) · None (17) · ornithopter (17) · propulsion (15) · Airplane (13) · navigation (10) · stability (9) · parachute (9) · rudder (8) · propeller (8) · LTA (8) · hybrid (8) · wings (7) · aerodynamics (5) · design (5) · landing (5)
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None (21)
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Related to aircraft:
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Cites these patents:
Citations from after 1930:

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