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Patents > Tech fields: stability & IPCs : IPC B64C17/00 or IPC B64C3/00 or IPC B64C39/00

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Supplementary to patent:
None (242) · Patent NO-1915-12-15 Carl Alfred Johansson (3) · Patent FR-1910-415470 (3) · Patent DE-1911-11-16 Otto Albin Budig (3) · Patent IT-1910-10-17 Carlo Navaro (3)
Related to aircraft:
Patent agent:
None (90) · None (24) · Armengaud jeune (24) · E. Blétry (13) · Marks & Clerk (11) · J. Germain (11) · Lavoix et Mosès (9) · J. Bonnet-Thirion (8) · Abel & Imray (8) · Charles Dony (8) · H. Boettcher fils (5) · Herbert Haddan & Co. (5) · Boult, Wade & Tennant (5)
National tech categories:
FR 6.4 (270) · None (104) · USPC 244/80 (8) · USPC 244/45R (5) · FR 6.3 (4) · USPC 244/48 (3) · DE 77h.5 (3) · USPC 244/46 (3) · USPC 244/13 (3) · USPC 244/49 (2) · USPC 244/93 (2) · USPC 244/91 (2) · USPC 244/177 (2)
IPCs: (Click arrow to add another value)
CPCs:
CPC B64C17/00 (341) · CPC B64C2700/6218 (141) · CPC B64C2700/6212 (71) · CPC B64C2700/6214 (42) · CPC B64C39/00 (38) · CPC B64C2700/6295 (36) · CPC B64C2700/6219 (22) · CPC B64C2700/6215 (11) · CPC B64C39/005 (5) · CPC B64C3/385 (5) · CPC B64C39/08 (5) · CPC B64C3/00 (4) · CPC B64C2700/6211 (4) · CPC B64C2700/6233 (4) · CPC B64C1/00 (3) · CPC B64C3/48 (3) · CPC B64C3/56 (2) · CPC B64C39/008 (2) · CPC B64C39/006 (2)
First filing:
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