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Patents > Family year: 1910 & First filing: Yes & Number of claims: 2-4

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Tech fields:
Airplane (76) · None (52) · stability (50) · frame (41) · Propulsion (33) · LTA (29) · propellers (26) · design (26) · control (26) · wings (24) · propeller (23) · rudder (20) · construction (20) · navigation (19) · subsystem (14) · aerodynamics (13) · helicopter (12) · hybrid (12) · airfoil (12)
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Patent agent:
None (58) · Armengaud jeune (15) · Victor J. Evans (8) · None (8) · Munn & Co. (5) · Charles Dony (5) · Schwab (4) · Herbert Haddan & Co. (4) · Dicker, Pollak & Derriman (4) · E. Blétry (4) · Marks & Clerk (4) · H. C. Everett Co. (4) · Chatwin, Herschell & Co. (4)
National tech categories:
None (109) · FR 6.4 (67) · HU V/h (11) · USPC 244/90R (7) · USPC 244/6 (5) · USPC 244/60 (5) · USPC 244/48 (4) · DE 77h.5 (4) · GB 4 propelling (3) · USPC 244/70 (3) · USPC 244/66 (3) · AT 77d (3) · USPC 244/234 (3) · USPC 244/35R (3)
IPCs:
None (113) · IPC B64C17/00 (24) · IPC B64C1/00 (21) · IPC B64C39/00 (15) · IPC B64C13/00 (11) · IPC B64C3/38 (10) · IPC B64C3/00 (10) · IPC B64C23/00 (8) · IPC B64C11/00 (7) · IPC B64B1/00 (7) · IPC B64C33/02 (6) · IPC B64B1/58 (5) · IPC B64C17/06 (4) · IPC B64C3/54 (4) · IPC B64C5/04 (3) · IPC B64C25/00 (3) · IPC B64C11/16 (3) · IPC B62C5/04 (3) · IPC B64C3/48 (3)
CPCs:
CPC B64C17/00 (28) · None (23) · CPC B64C13/00 (19) · CPC B64C23/005 (18) · CPC B64C2700/6295 (14) · CPC B64C3/385 (13) · CPC B64C2700/6218 (11) · CPC B64B1/00 (10) · CPC B64C2700/6256 (10) · CPC B64C2700/6212 (9) · CPC B64C2700/6274 (8) · CPC B64C3/00 (8) · CPC B64C11/006 (8) · CPC B64C33/02 (7) · CPC B64C39/00 (7) · CPC B64C39/005 (6) · CPC B64C17/06 (6) · CPC B64B1/58 (6) · CPC B64C9/00 (6)
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Citations from after 1930:
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