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Patents > Year granted: 1912 & Filing date: 1910 - 1919 & Number of figures: 2-5

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Tech fields:
airplane (167) · Stability (79) · design (64) · None (62) · frame (59) · propulsion (48) · wings (43) · propellers (41) · construction (40) · Automatic stability (35) · subsystem (35) · LTA (34) · landing (33) · aerodynamics (29) · navigation (27) · control (26) · helicopter (25) · propeller (24) · Rudder (22) · safety (21)
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Supplementary to patent:
None (307) · Patent GB-1911-5162 (4) · Patent BE-1910-12-31 Léon Dangy (3) · Patent FR-1910-423792 (3) · Patent BE-1911-05-15 Georges de Bothezat (3) · Patent BE-1911-04-14 Lucien-Constant-Joseph Harel (3)
Related to aircraft:
Patent agent:
None (101) · None (20) · Armengaud jeune (20) · Marks & Clerk (13) · L. Chassevent (11) · Boult, Wade & Tennant (9) · Hippolyte Josse (9) · Dupont et Elluin (8) · Victor J. Evans (8) · Schwab (7) · Charles Dony (6) · J. Bonnet-Thirion (6) · Weismann et Marx (6) · Wheatley & Mackenzie (6) · E. Blétry (5) · Gaston Rose (5) · H. Bœttcher fils (5) · Société A. Frey et de Carsalade (5)
National tech categories:
FR 6.4 (202) · None (95) · AT 77d (12) · HU V/h (11) · USPC 244/45R (10) · FR 6.2 (6) · DE 77h.6 (6) · DE 77h.5 (5) · CH 129b (5) · RU Group V (4) · USPC 244/80 (4) · USPC 244/46 (3) · USPC 244/6 (3) · USPC 244/35R (3) · FR 5.8 (3) · DK 77 (3) · DE 77h.9 (3) · FR 15.1 (3) · USPC 244/99 (3) · AU 90.3 (3)
IPCs:
None (146) · IPC B64C17/00 (45) · IPC B64C39/00 (44) · IPC B64C1/00 (34) · IPC B64C25/00 (19) · IPC B64C11/00 (15) · IPC B64B1/00 (12) · IPC B64C3/00 (12) · IPC B64C35/00 (10) · IPC B64D17/00 (8) · IPC B64C3/38 (7) · IPC B64C23/00 (7) · IPC B64C13/00 (7) · IPC B64C17/06 (5) · IPC B64B1/58 (5) · IPC B64C3/56 (5) · IPC F41G3/24 (4) · IPC B64C33/02 (4) · IPC B64C11/16 (4)
CPCs:
None (64) · CPC B64C17/00 (52) · CPC B64C2700/6295 (35) · CPC B64C39/00 (30) · CPC B64C2700/6218 (18) · CPC B64C11/006 (15) · CPC B64C13/00 (14) · CPC B64B1/00 (14) · CPC B64C25/06 (14) · CPC B64F2700/6226 (14) · CPC B64C23/005 (13) · CPC B64C3/385 (12) · CPC B64C3/00 (11) · CPC B64C39/08 (10) · CPC B64D17/00 (9) · CPC B64C35/00 (8) · CPC B64C25/62 (8)
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Citations from after 1930:
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