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Patents > National tech categories : DE 77h or FR 6.4 or USPC 244/30 & Number of diagram pages: 2-8

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Tech fields:
airplane (174) · design (95) · stability (89) · frame (81) · LTA (77) · wings (60) · construction (59) · propulsion (59) · None (51) · control (50) · propellers (45) · navigation (35) · subsystem (31) · hybrid (30) · automatic stability (29) · Lift (27) · aerodynamics (27) · helicopter (24) · landing (21)
Full specification filed date:
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Supplementary to patent:
None (306) · Patent FR-1908-396249 (4) · Patent IT-1913-03-20 Vigilio Baldo (3) · Patent BE-1907-202697 (3) · Patent FR-1908-401308 (3) · Patent FR-1908-396470 (2) · Patent FR-1908-385744 (2) · Patent FR-1916-491738 (2)
Related to aircraft:
Patent agent:
None (85) · Armengaud jeune (29) · None (21) · Weismann et Marx (16) · Lavoix et Mosès (16) · Brandon frères (14) · J. Bonnet-Thirion (13) · Boramé et Julien (10) · L. Chassevent (10) · J. Bonnet-Thirion et Breton (9) · Dom. Casalonga (9) · J. Germain (8) · E. Blétry (8) · M. Zerolo (8) · Matray frères et Cie (7) · Charles Dony (7) · Schwab (7) · Rigot et Prévost (6) · Weissmann et Marx (6) · Gaston Rose (6)
National tech categories: (Click arrow to add another value)
IPCs:
IPC B64C39/00 (65) · IPC B64C17/00 (61) · IPC B64C1/00 (47) · IPC B64B1/00 (45) · IPC B64C23/00 (30) · None (25) · IPC B64C33/02 (23) · IPC B64C35/00 (18) · IPC B64C11/00 (17) · IPC B64C27/04 (16) · IPC B64C3/38 (16) · IPC B64B1/58 (13) · IPC B64C33/00 (10) · IPC B64C17/06 (9) · IPC B64C25/00 (8) · IPC B64C3/56 (7) · IPC B64C13/00 (7) · IPC B64C3/52 (6) · IPC B64C3/54 (6)
CPCs:
CPC B64C17/00 (63) · CPC B64C39/00 (53) · CPC B64B1/00 (51) · CPC B64C2700/6295 (48) · CPC B64C23/005 (31) · CPC B64C2700/6218 (25) · CPC B64C33/02 (23) · CPC B64C2700/6274 (22) · CPC B64C2700/6212 (21) · CPC B64C35/00 (15) · CPC B64B1/58 (13) · CPC B64C3/385 (12) · CPC B64C2700/6281 (12) · CPC B64C11/006 (12) · CPC B64C33/00 (11) · CPC B64C27/04 (11) · CPC B64C13/00 (11) · CPC B64C17/06 (10) · CPC B64C2700/6216 (9)
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Citations from after 1930:
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