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Patents > National tech categories : DE 77h.5 or FR 6.4 & Number of figures: 9-18

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Tech fields:
Airplane (159) · stability (79) · design (79) · wings (55) · Frame (48) · Construction (43) · control (38) · Aerodynamics (38) · propellers (38) · Propulsion (35) · None (32) · automatic stability (30) · LTA (27) · lift (23) · chassis (23) · sustentation (21) · navigation (19) · landing (18) · flapping (18) · fuselage (18)
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Supplementary to patent:
None (203) · Patent FR-1912-446040 (5) · Patent FR-1908-396249 (3) · Patent BE-1907-202697 (2) · Patent FR-1912-461530 (2) · Patent FR-1908-385744 (2) · Patent IT-1913-03-20 Vigilio Baldo (2)
Related to aircraft:
Patent agent:
Armengaud jeune (42) · None (32) · None (19) · Lavoix et Mosès (13) · Schwab (9) · L. Chassevent (9) · Brandon frères (9) · Weismann et Marx (8) · Ch. Mardelet (8) · Dupont et Elluin (8) · J. Bonnet-Thirion (8) · Gaston Rose (7) · Charles Dony (7) · Boramé et Julien (7) · H. Boettcher fils (6) · J. Bonnet-Thirion et Breton (6) · E. Blétry (5)
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IPCs:
IPC B64C1/00 (55) · IPC B64C17/00 (52) · IPC B64C39/00 (37) · IPC B64C33/02 (21) · None (18) · IPC B64C3/00 (17) · IPC B64C23/00 (16) · IPC B64C3/38 (15) · IPC B64C11/00 (12) · IPC B64C17/06 (12) · IPC B64B1/00 (11) · IPC B64C35/00 (10) · IPC B64B1/58 (7) · IPC B64C33/00 (6) · IPC B64C3/56 (6) · IPC B64C13/00 (5) · IPC B64C3/48 (5) · IPC B64C3/18 (5)
CPCs:
CPC B64C17/00 (54) · CPC B64C39/00 (27) · CPC B64C33/02 (23) · CPC B64C2700/6295 (20) · CPC B64C2700/6218 (19) · CPC B64C3/00 (17) · CPC B64C23/005 (16) · CPC B64C2700/6212 (15) · CPC B64C17/06 (14) · CPC B64C1/00 (12) · CPC B64C3/385 (11) · CPC B64B1/00 (11) · CPC B64C2700/6274 (10) · CPC B64C2700/6233 (10) · CPC B64C11/006 (9) · CPC B64C35/00 (8) · CPC B64C2700/6216 (8) · CPC B64C39/08 (7) · CPC B64C13/00 (7) · CPC B64B1/58 (7)
First filing:
Citations from after 1930:
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