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Patents > CPCs : CPC B64C2700/6274 or CPC B64C29/0033 & First filing: Yes

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Office:
Inventors:
None (3) · Francis Erwin BORKENHAGEN (2) · Louis Badier (2) · Harvey McMaster Lloyd (2) · Douglas Dobbins (2) · Victor Camal (2) · Otto Sack (2) · Alexander Horton (2) · Nelson Leslie Hyatt (2) · William Radford (2) · Lazare-Victor-Joseph Duverne (2)
Inventor country:
Applicant person:
None (3) · William Radford (2) · BORKENHAGEN FRANCIS E (2) · Douglas Dobbins (2) · Nelson Leslie Hyatt (2) · Alexander Horton (2) · John Day De Prez (2) · Louis Badier (2) · Lazare-Victor-Joseph Duverne (2) · Harvey McMaster Lloyd (2) · Victor Camal (2) · Otto Sack (2)
Applicant type:
Applicant is inventor:
Tech fields:
None (74) · Airplane (25) · propulsion (18) · Helicopter (18) · Hybrid (14) · stability (10) · Frame (10) · Control (8) · Ascension (8) · propellers (8) · propeller (8) · design (8) · navigation (6) · whole (5) · lift (5)
Full specification filed date:
Application number:
None (4)
Granted:
Related to aircraft:
Patent agent:
None (34) · None (15) · W. P. Thompson & Co. (4) · E. Bletry (3) · Victor J. Evans (3) · Paul Caquet (3) · J. Germain (3) · J. Bonnet-Thirion (3) · C. Bauman (3) · Munn & Co. (2) · Lockwood & Lockwood (2) · J. Fayollet (2) · Hughes & Young (2) · G. de Mestral et F. Harlé (2) · Hy. Fairbrother (2) · Chassevent (2) · Armengaud jeune (2) · Borame et Julien (2)
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Citations from after 1930:
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