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Patents > National tech categories : DE 77h.4 or USPC 244/22

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Office:
Inventors:
None (13) · Bartholomew Connolly (2) · Johann Schütte (2) · Frederick William Brearey (2) · G. Arturo Crocco (2) · Charles I. Matson (2) · Ottavio Ricaldoni (2) · Julius Uherkovich de Uherkócz (2) · Ruter William Springer (2)
Inventor country:
Applicant person:
None (30) · Ruter William Springer (2) · Charles I. Matson (2) · Bartholomew Connolly (2) · Julius Uherkovich de Uherkócz (2)
Applicant is inventor:
Tech fields:
LTA (39) · frame (31) · flapping (31) · ornithopter (23) · Propulsion (21) · balloon (18) · None (16) · navigation (14) · propeller (12) · airplane (12) · hybrid (9) · airship (9) · rudder (9) · gas (8) · parachute (7) · material (7) · airfoil (7)
Full specification filed date:
Application number:
None (48)
Granted:
Publication date:
Related to aircraft:
Patent agent:
None (66) · Munn & Co. (6) · C. A. Snow & Co. (4) · None (3) · Frederick Benjamin (2) · Foster, Freeman, Watson & Coit (2) · F. N. Gillent (2)
National tech categories: (Click arrow to add another value)
First filing:
Cites these patents:
Citations from after 1930:
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