Drilldown: Patents

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Patents > Filing date: 1909 & Patent agent: None & Family year: 1900 - 1999

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Tech fields:
None (263) · airplane (107) · LTA (77) · frame (65) · design (63) · Propulsion (61) · stability (57) · propeller (44) · propellers (42) · navigation (41) · control (31) · construction (27) · airship (26) · wings (25) · Subsystem (25) · rudder (23) · whole (22) · lift (22) · Balloon (20) · automatic stability (16)
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Supplementary to patent:
None (503) · Patent GB-1908-4519 (6) · Patent GB-1909-2111 (6) · Patent US-1909-970771 (5) · Patent DE-1908-221549 (3) · Patent GB-1908-13809 (3) · Patent DE-1908-227242 (3) · Patent US-1908-1081147 (3) · Patent US-1908-927605 (2) · Patent DE-1909-221412 (2) · Patent DE-1907-215602 (2) · Patent FR-1909-406375 (2) · Patent FR-1908-404631 (2) · Patent US-1908-1077750 (2) · Patent DE-1908-220975 (2) · Patent FR-1908-407411 (2)
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National tech categories:
None (290) · FR 6.4 (69) · HU V/h (41) · AT 77d (16) · DE 77h.5 (12) · RU Group V (10) · USPC 244/66 (6) · USPC 244/80 (6) · USPC 244/22 (6) · USPC 244/93 (5) · DE 77h.11 (5) · DE 77h.15 (4) · DK 77 (4) · DE 77h.10 (4) · FR 6.2 (4) · USPC 244/13 (4) · DE 77h.6 (4)
IPCs:
None (440) · IPC B64B1/00 (20) · IPC B64C39/00 (20) · IPC B64B1/58 (16) · IPC B64C17/00 (12) · IPC B64C33/02 (10) · IPC B64C1/00 (8) · IPC B64C11/00 (6) · IPC B64C13/00 (5) · IPC B64B1/40 (4) · IPC B64C31/06 (4) · IPC B64B1/62 (3) · IPC B64C3/54 (3) · IPC B64C3/18 (3) · IPC B64C3/56 (3) · IPC B64C3/38 (3) · IPC B64C33/00 (3)
CPCs:
None (174) · CPC B64C2700/6295 (41) · CPC B64C39/00 (33) · CPC B64B1/00 (28) · CPC B64B1/58 (26) · CPC B64C17/00 (23) · CPC B64C11/006 (23) · CPC B64C3/385 (22) · CPC B64C33/02 (22) · CPC B64C23/005 (19) · CPC B64C13/00 (12) · CPC B64C33/00 (11) · CPC B64B1/40 (10) · CPC B64C2700/6274 (9) · CPC B64C39/005 (9) · CPC A63H27/08 (9) · CPC B64C11/36 (7) · CPC B64C11/00 (6) · CPC B64C2700/6281 (6) · CPC B64C39/008 (6)
First filing:
Citations from after 1930:
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