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Patents > Filing date: 1909 & National tech categories: FR 6.4 & Family year: 1909

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Tech fields:
airplane (124) · design (77) · LTA (57) · frame (46) · stability (45) · wings (42) · control (41) · propellers (39) · construction (34) · None (33) · propulsion (33) · aerodynamics (27) · navigation (24) · lift (20) · subsystem (19) · rudder (17) · automatic stability (16)
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Supplementary to patent:
None (254) · Patent FR-1909-398825 (3) · Patent FR-1909-405220 (2)
Related to aircraft:
Patent agent:
None (63) · Armengaud jeune (37) · None (20) · J. Bonnet-Thirion (14) · Weismann et Marx (12) · E. Blétry (11) · Charles Dony (9) · Boramé et Julien (8) · Lavoix et Mosès (8) · Schwab (8) · L. Chassevent (7) · Hippolyte Josse (6) · Y. Rabilloud et fils (6) · C. Baumann (6) · C. Blétry (5) · Chassevent (5) · Émile Klotz (5)
National tech categories: (Click arrow to add another value)
IPCs:
IPC B64C39/00 (39) · IPC B64C17/00 (30) · IPC B64B1/00 (29) · IPC B64B1/58 (22) · IPC B64C1/00 (21) · IPC B64C3/38 (16) · None (13) · IPC B64C23/00 (12) · IPC B64C11/00 (12) · IPC B64C33/02 (10) · IPC B64C3/00 (10) · IPC B64B1/40 (9) · IPC B64C33/00 (8) · IPC B64C13/00 (8) · IPC B64C3/52 (6) · IPC B64C3/48 (5) · IPC B64C35/00 (5) · IPC B64C11/20 (4) · IPC B64C25/00 (4)
CPCs:
CPC B64C39/00 (39) · CPC B64C17/00 (32) · CPC B64B1/00 (29) · CPC B64C2700/6295 (29) · CPC B64B1/58 (22) · CPC B64C3/385 (15) · CPC B64C23/005 (13) · CPC B64C13/00 (12) · CPC B64C33/02 (11) · CPC B64C3/00 (10) · CPC B64C11/006 (10) · CPC B64C2700/6218 (9) · CPC B64C2700/6212 (9) · CPC B64C33/00 (9) · CPC B64B1/40 (9) · CPC B64C2700/6233 (7) · CPC B64C3/52 (6) · CPC B64C2700/6274 (6)
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