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Patents > IPCs : IPC B64B1/00 or IPC B64C25/00 or IPC B64C39/00 & Number of diagram pages: 2-20

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Tech fields:
LTA (123) · airplane (82) · Frame (68) · propulsion (68) · design (53) · navigation (49) · construction (43) · None (42) · stability (31) · Wings (29) · balloon (25) · airship (24) · propeller (23) · propellers (23) · landing (21) · wheels (20) · safety (20) · whole (19) · lift (18)
Full specification filed date:
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Supplementary to patent:
None (264) · Patent FR-1916-502839 (3) · Patent FR-1908-396470 (2) · Patent GB-1908-4519 (2) · Patent FR-1883- (2) · Patent FR-1913-472867 (2)
Related to aircraft:
Patent agent:
None (87) · Marks & Clerk (12) · Munn & Co. (12) · None (11) · Armengaud jeune (10) · Boult, Wade & Tennant (7) · Chassevent (7) · Haseltine, Lake & Co. (5) · Weismann et Marx (5) · Brandon frères (5) · H. D. Fitzpatrick & Co. (4) · G. Petiau (3) · Lavoix et Mosès (3) · Borame et Julien (3) · J. Bonnet-Thirion (3) · Hippolyte Josse (3) · Francis Heron Rogers (3) · Herbert Haddan & Co. (3) · A. M. & William Clark (3)
National tech categories:
None (103) · FR 6.4 (101) · FR 6.3 (28) · USPC 244/30 (20) · USPC 244/26 (10) · USPC 244/25 (9) · USPC 244/45R (8) · USPC 244/70 (7) · USPC 244/13 (7) · USPC 244/127 (5) · USPC 244/100R (5) · USPC 244/99 (4) · USPC 244/20 (4) · USPC 244/50 (4) · USPC 244/27 (4) · USPC 244/29 (4) · USPC 244/125 (4) · USPC 244/9 (4) · USPC 244/32 (4) · USPC 244/96 (4)
IPCs: (Click arrow to add another value)
CPCs:
CPC B64B1/00 (119) · CPC B64C2700/6295 (110) · CPC B64C39/00 (97) · CPC B64C39/005 (37) · CPC B64C39/08 (27) · CPC B64F2700/6226 (16) · CPC B64C25/06 (15) · CPC B64C39/008 (12) · CPC B64C25/52 (10) · CPC B64B1/40 (9) · CPC B64C25/62 (7) · CPC B64C39/003 (6) · CPC B64C25/64 (6) · CPC B64C25/54 (5) · CPC B64C39/006 (4) · CPC B64C25/60 (4) · CPC B64C39/06 (3)
First filing:
Citations from after 1930:
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