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Patents > National tech categories : FR 6.4 or USPC 244/6 & Number of claims: 4-5

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Tech fields:
Airplane (167) · design (76) · stability (66) · frame (55) · wings (52) · construction (45) · aerodynamics (41) · None (35) · LTA (34) · control (33) · lift (32) · propulsion (31) · Propellers (31) · sustentation (30) · automatic stability (27) · hybrid (24) · navigation (20) · rudder (20) · Landing (19) · helicopter (18)
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Supplementary to patent:
None (215) · Patent FR-1909-410140 (2) · Patent FR-1908-407090 (2) · Patent IT-1910-10-17 Carlo Navaro (2) · Patent FR-1909-403418 (2) · Patent FR-1911-431862 (2) · Patent FR-1911-431131 (2)
Related to aircraft:
Patent agent:
Armengaud jeune (55) · None (28) · E. Blétry (23) · None (21) · Dupont et Elluin (17) · L. Chassevent (14) · Schwab (10) · Charles Dony (10) · Lavoix et Mosès (9) · H. Bœttcher fils (8) · J. Bonnet-Thirion (8) · Hippolyte Josse (7) · Boramé et Julien (7) · Paul Coulomb (5) · J. Germain (5) · Chassevent (5)
National tech categories: (Click arrow to add another value)
IPCs:
IPC B64C39/00 (44) · IPC B64C17/00 (43) · IPC B64C1/00 (38) · None (20) · IPC B64C23/00 (20) · IPC B64B1/00 (19) · IPC B64C3/38 (16) · IPC B64B1/58 (15) · IPC B64C3/00 (13) · IPC B64C11/00 (10) · IPC B64C33/02 (9) · IPC B64C27/04 (8) · IPC B64C13/00 (8) · IPC B64C33/00 (6) · IPC B64C35/00 (6) · IPC B64D17/00 (6) · IPC B64C3/52 (5) · IPC B64C17/06 (5) · IPC B64C25/00 (5)
CPCs:
CPC B64C17/00 (44) · CPC B64C39/00 (34) · CPC B64C23/005 (29) · CPC B64C2700/6295 (24) · CPC B64B1/00 (18) · CPC B64C3/385 (16) · CPC B64B1/58 (15) · CPC B64C2700/6274 (14) · CPC B64C2700/6218 (13) · CPC B64C3/00 (13) · CPC B64C1/00 (11) · CPC B64C33/02 (11) · CPC B64C13/00 (10) · CPC B64C2700/6214 (9) · CPC B64C2700/6212 (9) · CPC B64C2700/6233 (9) · CPC B64C11/006 (7) · CPC B64C2700/6256 (7)
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