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Patents > Applicant firm: None & IPCs : IPC B64C23/00 or IPC B64C3/00 or IPC B64C39/00 & Number of diagram pages: 2-20

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Tech fields:
airplane (97) · None (58) · design (53) · frame (41) · Propulsion (40) · construction (37) · wings (33) · navigation (31) · stability (29) · propellers (24) · whole (19) · Aerodynamics (18) · control (18) · Lift (16) · hybrid (15) · sustentation (14) · ascension (13) · LTA (13)
Full specification filed date:
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Supplementary to patent:
None (206) · Patent FR-1916-502839 (3) · Patent US-1916-1208684 (3) · Patent GB-1908-4519 (2) · Patent FR-1908-396470 (2)
Related to aircraft:
Patent agent:
None (52) · Marks & Clerk (11) · None (11) · Boult, Wade & Tennant (9) · Munn & Co. (6) · J. Bonnet-Thirion (6) · Weismann et Marx (5) · M. Zerolo (5) · Brandon frères (5) · H. D. Fitzpatrick & Co. (4) · Boramé et Julien (4) · Chassevent (4)
National tech categories:
FR 6.4 (108) · None (104) · FR 6.3 (8) · USPC 244/45R (7) · USPC 244/48 (6) · USPC 244/13 (6) · USPC 244/70 (6) · USPC 244/90R (3) · USPC 244/19 (3) · USPC 244/20 (3) · USPC 244/27 (3) · DE 77 (3) · USPC 244/9 (3)
IPCs: (Click arrow to add another value)
CPCs:
CPC B64C2700/6295 (100) · CPC B64C39/00 (92) · CPC B64C23/005 (57) · CPC B64C39/005 (37) · CPC B64C2700/6274 (34) · CPC B64C39/08 (29) · CPC B64C3/00 (18) · CPC B64C39/008 (13) · CPC B64C2700/6273 (10) · CPC B64C2700/6233 (10) · CPC B64C3/385 (7) · CPC B64C39/003 (7) · CPC B64C2700/6235 (6) · CPC B64C39/006 (4) · CPC B64C39/06 (4) · CPC B64C2700/6271 (3)
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