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Patents > Tech fields : Stability or landing & Number of text pages: 3-4

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None (562) · Seine (11) · Budapest (7) · Nord (5) · Loire (5) · England (5) · Paris (4) · Lyon (3) · Seine-et-Oise (3) · New York city (3) · New York county (3) · County of London (3)
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Supplementary to patent:
None (440) · Patent IT-1910-10-17 Carlo Navaro (4) · Patent FR-1912-447782 (4) · Patent FR-1909-410140 (4) · Patent DE-1911-11-16 Otto Albin Budig (3) · Patent US-1908-927605 (3) · Patent US-1903-821393 (3) · Patent NO-1915-12-15 Carl Alfred Johansson (3) · Patent DE-1908-232250 (3) · Patent GB-1908-4519 (3) · Patent FR-1909-403985‎ (3)
Related to aircraft:
National tech categories:
FR 6.4 (228) · None (175) · USPC 244/80 (20) · HU V/h (17) · USPC 244/90R (15) · CH 129b (10) · FR 6.3 (9) · DE 77h.5 (7) · USPC 244/6 (7) · USPC 244/78.1 (7) · USPC 244/93 (7) · AT 77d (7) · USPC 244/48 (6) · USPC 244/45R (6) · USPC 244/177 (5) · USPC 244/22 (5) · USPC 244/35R (5) · USPC 244/46 (5) · USPC 244/66 (5) · AU 90.3 (5)
IPCs:
None (241) · IPC B64C17/00 (152) · IPC B64C1/00 (115) · IPC B64C39/00 (29) · IPC B64C25/00 (23) · IPC B64C17/06 (19) · IPC B64C23/00 (13) · IPC B64C13/00 (12) · IPC B64B1/00 (10) · IPC B64C35/00 (10) · IPC B64C3/38 (9) · IPC B64C3/00 (7) · IPC B64B1/58 (7) · IPC B64C9/00 (6) · IPC B64C3/56 (6) · IPC B64C33/02 (6) · IPC B64C33/00 (6) · IPC B64B1/40 (5)
CPCs:
CPC B64C17/00 (186) · None (89) · CPC B64C2700/6218 (61) · CPC B64C13/00 (30) · CPC B64C2700/6212 (28) · CPC B64C2700/6214 (25) · CPC B64C23/005 (25) · CPC B64C2700/6295 (24) · CPC B64C39/00 (22) · CPC B64C17/06 (21) · CPC B64C2700/6216 (17) · CPC B64B1/00 (17) · CPC B64C25/06 (16) · CPC B64F2700/6226 (16) · CPC B64C3/385 (16) · CPC B64C1/00 (15) · CPC B64C33/02 (12) · CPC B64C2700/6219 (12) · CPC B64C3/14 (11)
First filing:
Citations from after 1930:
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