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Patents > Year granted: 1909 & Patent agent : Boult, Wade & Tennant or None & Assigned to: None

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Tech fields:
None (649) · LTA (83) · airplane (57) · propulsion (48) · Navigation (45) · stability (33) · Design (32) · frame (26) · control (24) · balloon (23) · Wings (22) · Propellers (21) · subsystem (19) · propeller (15) · flapping (15) · Hybrid (14) · Lift (13) · Rudder (12) · safety (12)
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Supplementary to patent:
None (851) · Patent US-1903-821393 (3) · Patent GB-1908-4519 (3) · Patent DK-1908-11943 (2) · Patent DE-1907-214228 (2) · Patent DE-1908-221549 (2) · Patent DE-1907-202942 (2) · Patent IT-1907-03-09 (2)
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National tech categories:
None (705) · FR 6.4 (56) · AT 77d (14) · HU V/h (14) · MX F. III (10) · USPC 244/22 (6) · DE 77h.4 (5) · USPC 244/63 (5) · DE 77h.15 (4) · DE 77h.6 (4) · USPC 244/30 (4) · DK 77 (4) · DE 77h.5 (3) · DE 77h.2 (3) · IT 8 (3) · USPC 244/11 (3) · USPC 244/28 (3) · USPC 244/52 (3) · USPC 244/6 (3)
IPCs:
None (781) · IPC B64B1/00 (31) · IPC B64C39/00 (15) · IPC B64B1/58 (9) · IPC B64C33/02 (8) · IPC B64C1/00 (7) · IPC B64C33/00 (5) · IPC B64C13/00 (5) · IPC B64C17/00 (5) · IPC B64F1/06 (4) · IPC B64C3/00 (3) · IPC B64C31/06 (3) · IPC B64C11/00 (2) · IPC B64C11/001 (2) · IPC B64C3/38 (2) · IPC B64C23/005 (2) · IPC B64C23/00 (2) · IPC B64B1/40 (2) · IPC B64C31/02 (2)
CPCs:
None (602) · CPC B64B1/00 (40) · CPC B64C2700/6295 (22) · CPC B64C39/00 (20) · CPC B64C33/02 (18) · CPC B64C23/005 (17) · CPC B64C11/006 (17) · CPC B64B1/58 (17) · CPC B64C3/385 (12) · CPC B64C2700/6274 (11) · CPC B64C39/005 (11) · CPC B64C33/00 (10) · CPC B64C17/00 (9) · CPC B64C13/00 (9) · CPC B64C11/00 (7) · CPC A63H27/08 (6)
First filing:
Citations from after 1930:
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