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Patents > IPCs : IPC B64C13/00 or IPC B64C17/00

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None (609) · Seine (14) · Loire (7) · Paris (6) · New York City (4) · Nièvre (4) · Nord (4) · New York county (3) · New York (3) · La Ricamarie (3)
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None (445) · Patent FR-1908-396249 (5) · Patent NO-1915-12-15 Carl Alfred Johansson (3) · Patent DE-1911-11-16 Otto Albin Budig (3) · Patent FR-1910-415470 (3) · Patent IT-1910-10-17 Carlo Navaro (3) · Patent GB-1909-8531‎ (3)
Related to aircraft:
Patent agent:
None (120) · None (40) · Armengaud jeune (31) · Marks & Clerk (23) · E. Blétry (16) · Weismann et Marx (12) · J. Bonnet-Thirion (12) · Charles Dony (11) · Matray frères et Cie (10) · Abel & Imray (10) · J. Germain (10) · P. Follin (10) · Haseltine, Lake & Co. (9) · Lavoix et Mosès (9) · Brandon frères (9) · Schwab (9) · Boult, Wade & Tennant (8) · H. Boettcher fils (8)
National tech categories:
FR 6.4 (399) · None (202) · DE 77h.5 (27) · USPC 244/80 (11) · USPC 244/233 (6) · USPC 244/231 (5) · USPC 244/234 (5) · FR 6.3 (4) · USPC 244/237 (3) · USPC 244/82 (3) · USPC 244/87 (3) · DE 62b.15 (3) · USPC 244/177 (2) · USPC 244/88 (2) · USPC 244/89 (2) · USPC 244/90R (2) · USPC 244/93 (2) · USPC 244/222 (2) · USPC 244/225 (2)
IPCs: (Click arrow to add another value)
CPCs:
CPC B64C17/00 (519) · CPC B64C2700/6218 (187) · CPC B64C13/00 (158) · CPC B64C2700/6212 (108) · CPC B64C2700/6256 (97) · CPC B64C2700/6214 (67) · CPC B64C2700/6219 (34) · CPC B64C2700/6215 (15) · CPC B64C2700/6259 (7) · CPC B64C2700/6211 (5) · CPC B64C1/00 (5) · CPC B64C3/48 (3) · CPC B64C2700/626 (2) · CPC B64C3/38 (2) · CPC B64C23/005 (2)
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