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Patents > Year filed: 1912 & Supplementary to patent: None & Related to aircraft: 1

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Tech fields:
None (162) · airplane (115) · stability (48) · Frame (35) · design (34) · propellers (27) · Propulsion (26) · Wings (24) · construction (23) · LTA (19) · Aerodynamics (19) · navigation (17) · landing (16) · whole (16) · control (15) · helicopter (15) · fuselage (15) · propeller (15) · Hybrid (14)
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Related to aircraft: (Click arrow to add another value)
Patent agent:
None (221) · None (19) · Victor J. Evans (9) · Armengaud jeune (8) · Hippolyte Josse (7) · H. Boettcher fils (7) · Marks & Clerk (5) · Dupont et Elluin (5) · Charles Dony (4) · Schwab (4) · Dom. Casalonga (4)
National tech categories:
None (184) · FR 6.4 (125) · HU V/h (18) · AT 77d (14) · USPC 244/45R (9) · CH 129b (7) · BE K (5) · NL 62 (4) · USPC 244/233 (4) · USPC 244/80 (4) · USPC 244/48 (4) · DE 77h.9 (4) · DE 77h.5 (4) · USPC 244/35R (3) · USPC 244/22 (3) · FR 5.3 (3) · USPC 244/91 (3) · DE 77h (3)
IPCs:
None (263) · IPC B64C39/00 (30) · IPC B64C17/00 (25) · IPC B64C1/00 (12) · IPC B64C3/00 (11) · IPC B64C11/00 (11) · IPC B64C35/00 (8) · IPC B64C3/38 (8) · IPC B64C25/00 (6) · IPC B64C3/56 (6) · IPC B64B1/00 (5) · IPC B64C11/16 (4) · IPC B64C33/00 (4)
CPCs:
None (80) · CPC B64C17/00 (48) · CPC B64C2700/6295 (31) · CPC B64C39/00 (19) · CPC B64C39/08 (17) · CPC B64C3/385 (17) · CPC B64C13/00 (16) · CPC B64C3/00 (14) · CPC B64C33/02 (13) · CPC B64C35/00 (13) · CPC B64C2700/6212 (11) · CPC B64C23/005 (10) · CPC B64C2700/6218 (10) · CPC B64C11/006 (9) · CPC B64C3/56 (9) · CPC B64C2700/6214 (8) · CPC B64C2700/6219 (8) · CPC B64B1/00 (8) · CPC B64C2700/6281 (7)
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