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Patents > National tech categories : FR 6.4 or HU V/h & Number of diagram pages: 2-4

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Tech fields:
None (196) · Airplane (139) · design (85) · stability (70) · Frame (60) · Construction (53) · Wings (45) · LTA (45) · propellers (44) · propulsion (44) · Control (41) · subsystem (35) · whole (34) · automatic stability (27) · Airship (25) · navigation (20) · Aerodynamics (20) · lift (20) · flapping (19)
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None (334) · Patent FR-1908-396249 (4) · Patent FR-1908-401308 (3) · Patent IT-1913-03-20 Vigilio Baldo (3) · Patent US-1909-970771 (2) · Patent GB-1911-255 (2) · Patent GB-1911-19976 (2) · Patent DE-1907-215602 (2) · Patent DE-1907-12-07 Vincent Wisniewski (2) · Patent IT-1910-112937 (2) · Patent FR-1908-396470 (2) · Patent BE-1913-07-12 Joseph de Pierpont de Burnot (2) · Patent BE-1912-08-13-Panian (2) · Patent GB-1909-11090 (2) · Patent GB-1908-4519 (2) · Patent US-1903-821393 (2) · Patent AT-1912-63049 (2) · Patent FR-1916-491738 (2) · Patent US-1916-1208684 (2) · Patent US-1913-04-21 George Raymond Lawrence (2)
Related to aircraft:
Patent agent:
None (143) · Armengaud jeune (27) · None (22) · Lavoix et Mosès (19) · Weismann et Marx (17) · Brandon frères (15) · J. Bonnet-Thirion (13) · Boramé et Julien (12) · J. Germain (10) · L. Chassevent (10) · Dom. Casalonga (10) · J. Bonnet-Thirion et Breton (9) · E. Blétry (8) · Schwab (7) · Rigot et Prévost (7) · Matray frères et Cie (7) · M. Zerolo (7) · Charles Dony (7)
National tech categories: (Click arrow to add another value)
IPCs:
None (101) · IPC B64C17/00 (67) · IPC B64C39/00 (67) · IPC B64C1/00 (52) · IPC B64C23/00 (31) · IPC B64C3/38 (22) · IPC B64C33/02 (22) · IPC B64B1/00 (21) · IPC B64C35/00 (19) · IPC B64C11/00 (17) · IPC B64C27/04 (14) · IPC B64B1/58 (11) · IPC B64C13/00 (11) · IPC B64C17/06 (10) · IPC B64C33/00 (9) · IPC B64C3/54 (9) · IPC B64C25/00 (8) · IPC B64C3/56 (7) · IPC B64C3/00 (6) · IPC B64C3/52 (6)
CPCs:
None (87) · CPC B64C17/00 (69) · CPC B64C39/00 (50) · CPC B64C2700/6295 (40) · CPC B64C23/005 (32) · CPC B64C2700/6218 (27) · CPC B64C33/02 (24) · CPC B64C2700/6274 (23) · CPC B64C2700/6212 (22) · CPC B64B1/00 (22) · CPC B64C3/385 (19) · CPC B64C35/00 (17) · CPC B64C13/00 (13) · CPC B64C11/006 (12) · CPC B64C17/06 (11) · CPC B64B1/58 (11) · CPC B64C33/00 (10) · CPC B64C2700/6281 (10) · CPC B64C27/04 (9) · CPC B64C3/54 (9)
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