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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 (192) · design (98) · stability (92) · frame (82) · LTA (77) · None (67) · wings (64) · Propulsion (63) · construction (61) · control (56) · Propellers (48) · navigation (35) · Hybrid (33) · automatic stability (33) · Subsystem (31) · aerodynamics (27) · lift (27) · helicopter (26) · sustentation (24) · Whole (22)
Full specification filed date:
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Supplementary to patent:
None (333) · Patent FR-1908-396249 (4) · Patent BE-1907-202697 (3) · Patent FR-1908-401308 (3) · Patent IT-1913-03-20 Vigilio Baldo (3) · Patent FR-1908-396470 (2) · Patent FR-1908-385744 (2) · Patent BE-1912-08-13-Panian (2) · Patent FR-1916-491738 (2)
Related to aircraft:
Patent agent:
None (83) · Armengaud jeune (30) · None (27) · Lavoix et Mosès (19) · Weismann et Marx (18) · Brandon frères (16) · J. Bonnet-Thirion (14) · Boramé et Julien (12) · Dom. Casalonga (11) · J. Germain (10) · L. Chassevent (10) · J. Bonnet-Thirion et Breton (9) · E. Blétry (8) · M. Zerolo (8) · Schwab (8) · Rigot et Prévost (8) · Matray frères et Cie (7) · Gaston Rose (7) · Charles Dony (7)
National tech categories: (Click arrow to add another value)
IPCs:
IPC B64C39/00 (73) · IPC B64C17/00 (66) · IPC B64C1/00 (49) · IPC B64B1/00 (45) · IPC B64C23/00 (33) · None (28) · IPC B64C33/02 (26) · IPC B64C3/38 (25) · IPC B64C35/00 (19) · IPC B64C11/00 (17) · IPC B64C27/04 (16) · IPC B64B1/58 (13) · IPC B64C13/00 (11) · IPC B64C17/06 (10) · IPC B64C33/00 (10) · IPC B64C3/54 (9) · IPC B64C25/00 (8) · IPC B64C3/56 (7) · IPC B64C3/52 (6)
CPCs:
CPC B64C17/00 (68) · CPC B64C39/00 (54) · CPC B64B1/00 (52) · CPC B64C2700/6295 (43) · CPC B64C23/005 (34) · CPC B64C33/02 (28) · CPC B64C2700/6212 (25) · CPC B64C2700/6218 (24) · CPC B64C2700/6274 (24) · CPC B64C3/385 (21) · CPC B64C35/00 (16) · CPC B64C13/00 (13) · CPC B64B1/58 (13) · CPC B64C2700/6281 (12) · CPC B64C11/006 (12) · CPC B64C17/06 (11) · CPC B64C33/00 (11) · CPC B64C27/04 (11) · CPC B64C3/54 (9)
First filing:
Citations from after 1930:
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