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Patents > Related to aircraft: Other & National tech categories: FR 6.4 & Number of claims: 3-4

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Tech fields:
airplane (202) · design (109) · stability (99) · frame (69) · construction (65) · wings (59) · LTA (52) · propulsion (51) · aerodynamics (51) · None (48) · propellers (47) · Lift (46) · control (44) · automatic stability (34) · sustentation (34) · navigation (27) · subsystem (26) · rudder (24) · fuselage (23) · landing (23)
Full specification filed date:
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Supplementary to patent:
None (285) · Patent FR-1907-373818 (3) · Patent BE-1912-08-13-Panian (2) · Patent FR-1911-449265 (2) · Patent FR-1911-431862 (2) · Patent FR-1911-431131 (2) · Patent FR-1910-415046 (2) · Patent FR-1909-403418 (2) · Patent FR-1908-401308 (2) · Patent FR-1910-423667 (2)
Related to aircraft: (Click arrow to add another value)
Patent agent:
Armengaud jeune (75) · None (29) · Dupont et Elluin (28) · None (23) · E. Blétry (22) · L. Chassevent (21) · Charles Dony (17) · Schwab (15) · Lavoix et Mosès (11) · J. Bonnet-Thirion (11) · Hippolyte Josse (10) · Brandon frères (8) · Boramé et Julien (8) · H. Bœttcher fils (7) · J. Germain (7) · Emile Bert (7) · Rigot et Prévost (6)
National tech categories: (Click arrow to add another value)
IPCs:
IPC B64C1/00 (59) · IPC B64C39/00 (51) · IPC B64C17/00 (49) · IPC B64B1/00 (26) · IPC B64C3/00 (20) · IPC B64C3/38 (17) · IPC B64C23/00 (16) · None (13) · IPC B64C35/00 (13) · IPC B64C33/02 (12) · IPC B64C13/00 (12) · IPC B64C25/00 (12) · IPC B64B1/58 (11) · IPC B64C11/00 (11) · IPC B64C27/04 (10) · IPC B64C3/54 (8) · IPC B64C17/06 (8) · IPC B64C3/56 (7) · IPC B64C33/00 (7) · IPC B64B1/62 (6)
CPCs:
CPC B64C17/00 (54) · CPC B64C39/00 (38) · CPC B64C2700/6295 (25) · CPC B64B1/00 (25) · CPC B64C2700/6218 (21) · CPC B64C1/00 (20) · CPC B64C3/00 (20) · CPC B64C3/385 (16) · CPC B64C23/005 (16) · CPC B64C13/00 (15) · CPC B64C2700/6274 (14) · CPC B64C33/02 (13) · CPC B64C25/06 (11) · CPC B64B1/58 (11) · CPC B64C35/00 (10) · CPC B64C2700/6256 (10) · CPC B64C17/06 (10)
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Citations from after 1930:
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