Drilldown: Patents

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Patents > Tech fields : Dirigible or stability & Application number: None

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Supplementary to patent:
None (342) · Patent GB-1903-27212 (6) · Patent GB-1909-26034 (6) · Patent US-1913-04-21 George Raymond Lawrence (6) · Patent GB-1908-4519 (5) · Patent AT-1900-12657 (4) · Patent NO-1915-12-15 Carl Alfred Johansson (4) · Patent BE-1911-05-15 Georges de Bothezat (4) · Patent GB-1909-2111 (4) · Patent HU-1901-24148 (4) · Patent FR-1909-410140 (4) · Patent GB-1909-8531 (4) · Patent FR-1905-361570 (3) · Patent AU-1911-510 (3) · Patent FR-1912-447782 (3) · Patent US-1903-821393 (3) · Patent FR-1898-275602 (3)
Related to aircraft:
Patent agent:
None (309) · Haseltine, Lake & Co. (9) · Marks & Clerk (7) · E. Blum & Co. (7) · Armengaud jeune (6) · Munn & Co. (5) · Henry Hughes (5) · Chassevent (4) · Victor J. Evans (4) · E. et G. Bede (3) · Abel & Imray (3) · Schwab (3) · H. Kirchhofer (3) · F. W. Le Tall (3) · Wm. P. Thompson & Co. (3)
National tech categories:
None (143) · FR 6.3 (47) · BE K (34) · AT 77d (29) · FR 6.4 (28) · IT 8 (25) · CH 129b (19) · DE 77h.5 (19) · DE 77 (18) · DE 77h (12) · RU Group V (9) · AU 90.3 (8) · DK 77 (7) · USPC 244/80 (6) · USPC 244/93 (5) · HU V/h (5) · FR 5 (5)
IPCs:
None (426) · IPC B64C17/00 (12) · IPC B64B1/00 (12) · IPC B64C1/00 (7) · IPC B64B1/40 (4) · IPC B64C39/00 (4) · IPC B64C23/00 (4) · IPC F42B10/00 (4) · IPC B64C31/00 (3) · IPC B64C17/04 (3) · IPC B64C19/00 (3) · IPC G01C21/18 (3) · IPC B64C31/06 (3) · IPC B64B1/58 (3) · IPC B64C17/02 (2) · IPC B64D35/04 (2) · IPC B64C9/00 (2) · IPC B64C17/06 (2) · IPC B64C31/02 (2)
CPCs:
None (380) · CPC B64C17/00 (27) · CPC B64B1/00 (18) · CPC B64C23/005 (8) · CPC B64B1/40 (7) · CPC B64C13/00 (6) · CPC G01C21/18 (5) · CPC B64C39/00 (5) · CPC Y10T74/1218 (4) · CPC A63H27/08 (4) · CPC B64C2700/6295 (4) · CPC B64C5/08 (3) · CPC B64C31/02 (3) · CPC B64C39/08 (3)
First filing:
Citations from after 1930:
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