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Patents > CPCs : CPC B64C23/005 or CPC B64C27/04 or CPC B64C2700/6218

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Tech fields:
None (293) · airplane (238) · stability (185) · propulsion (85) · design (82) · helicopter (82) · Automatic stability (72) · frame (68) · hybrid (62) · propeller (52) · navigation (48) · Propellers (48) · aerodynamics (46) · Wings (43) · control (43) · Lift (39) · Construction (38) · Ascension (34) · sustentation (27)
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Supplementary to patent:
None (579) · Patent FR-1909-410140 (5) · Patent FR-1908-407090 (4) · Patent DE-1911-11-16 Otto Albin Budig (3)
Related to aircraft:
Patent agent:
None (313) · None (30) · Armengaud jeune (16) · J. Fayollet (9) · J. Bonnet-Thirion (9) · Marks & Clerk (9) · E. Blétry (9) · Brandon frères (8) · Lavoix et Mosès (7) · G. de Mestral et F. Harlé (7) · Schwab (7) · Victor J. Evans (7) · J. Germain (7) · Charles Dony (6) · Boramé et Julien (6) · Munn & Co. (6) · Boult, Wade & Tennant (6)
National tech categories:
None (317) · FR 6.4 (279) · USPC 244/6 (48) · USPC 244/66 (20) · USPC 244/12.1 (16) · FR 6.3 (8) · USPC 244/80 (7) · DE 77h.5 (6) · USPC 244/60 (6) · DE 77 (5) · USPC 244/35R (5) · USPC 244/139 (5) · USPC 244/100R (4) · USPC 244/48 (4) · USPC 244/65 (3) · USPC 244/53R (3) · USPC 244/51 (3) · DE 77h (3) · USPC 244/104R (3)
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Cites these patents:
None (744)
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