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Patents > IPCs : IPC B64C27/46 or IPC B64C39/00 & First filing: Yes

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None (275) · Paris (4) · Seine (4) · London (3) · Somme (2) · Nord (2) · Pennsylvania (2) · Aisne (2) · Brussels (2)
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Tech fields:
airplane (104) · None (66) · design (51) · propulsion (49) · wings (40) · stability (33) · frame (32) · construction (25) · propellers (23) · navigation (21) · aerodynamics (20) · control (20) · whole (18) · lift (17) · sustentation (11) · rudder (11) · biplane (11) · LTA (11) · chassis (11) · fuselage (11)
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Patent agent:
None (69) · None (25) · Armengaud jeune (13) · Marks & Clerk (9) · J. Germain (6) · L. Chassevent (5) · J. Bonnet-Thirion (5) · Munn & Co. (5) · Weismann et Marx (5) · Lavoix et Mosès (4) · Brandon frères (4) · Haseltine, Lake & Co. (4) · Y. Rabilloud et fils (4) · Dupont et Elluin (4) · Chassevent (4) · C. Blétry (4) · Boult, Wade & Tennant (4)
National tech categories:
FR 6.4 (142) · None (102) · USPC 244/45R (11) · USPC 244/13 (8) · DE 77h.5 (7) · DE 77h.11 (5) · USPC 244/70 (4) · FR 6.3 (3) · USPC 244/27 (3) · USPC 244/9 (3) · DE 77 (3)
IPCs: (Click arrow to add another value)
CPCs:
CPC B64C39/00 (163) · CPC B64C2700/6295 (153) · CPC B64C39/005 (43) · CPC B64C39/08 (37) · CPC B64C39/008 (20) · CPC B64C39/003 (10) · CPC B64C39/006 (7) · CPC B64C39/062 (4) · None (4) · CPC B64C39/06 (3) · CPC B64C3/385 (3) · CPC B64C3/42 (3) · CPC B64C39/10 (2) · CPC B64C23/08 (2) · CPC B64C3/56 (2) · CPC B64C2700/6297 (2) · CPC B64C3/10 (2) · CPC Y10S244/903 (2)
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