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Patents > National tech categories : AT 77d or USPC 244/22 & Number of diagram pages: 2-20

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Office:
Inventors:
Charles I. Matson (2) · Julius Uherkovich de Uherkocz (2)
Inventor country:
Applicant person:
None (5) · Charles I. Matson (2) · Julius Uherkovich de Uherkócz (2)
Applicant type:
Applicant is inventor:
Tech fields:
flapping (29) · ornithopter (22) · frame (21) · None (14) · propulsion (14) · navigation (14) · propeller (13) · airplane (12) · hybrid (8) · stability (7) · wings (7) · rudder (6) · airfoil (6) · landing (5) · wheels (5) · takeoff (5) · parachute (5) · LTA (5) · marine (4)
Full specification filed date:
Application number:
None (16)
Granted:
Publication date:
Related to aircraft:
Patent agent:
None (22) · Munn & Co. (5) · C. A. Snow & Co. (4) · Frederick Benjamin (2) · Foster, Freeman, Watson & Coit (2) · F. N. Gillent (2) · None (2)
National tech categories: (Click arrow to add another value)
First filing:
Citations from after 1930:
Number of text pages:
Number of diagram pages:

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