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Patents > Inventor country: FR & Tech fields : hydrogen or stability

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None (408) · Seine (22) · Nord (16) · Paris (10) · Seine-et-Oise (9) · Loire (7) · Nièvre (5) · Hérault (5) · Orne (4) · Morbihan (4) · Meurthe-et-Moselle (4) · Var (3) · Bouches-du-Rhône (3) · Meudon (3) · Lyon (3) · Lorient (3) · La Ricamarie (3) · Douai (3)
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None (332) · Patent FR-1909-399456 (7) · Patent FR-1912-447782 (7) · Patent FR-1911-443878 (4) · Patent FR-1914-475066 (4) · Patent BE-1910-230887 (4) · Patent FR-1909-399456.11513 (3) · Patent FR-1909-406466 (3) · Patent FR-1907-373818 (3) · Patent FR-1910-415470 (3) · Patent FR-1905-361570 (3) · Patent FR-1910-428665 (3) · Patent FR-1908-400837 (3) · Patent FR-1908-401308 (3) · Patent FR-1911-446282 (3)
Related to aircraft:
Patent agent:
None (139) · Armengaud jeune (56) · None (53) · J. Bonnet-Thirion (13) · J. Germain (13) · E. Blétry (11) · Haseltine, Lake & Co. (11) · Lavoix et Mosès (10) · Charles Dony (8) · Hippolyte Josse (7) · L. Chassevent (7) · H. Boettcher fils (7) · Abel & Imray (6) · Schwab (6) · Weismann et Marx (6) · Chassevent (6) · Johnsons & Willcox (5) · Dupont et Elluin (5) · Marks & Clerk (5) · Boult, Wade & Tennant (5)
National tech categories:
FR 6.4 (341) · None (79) · FR 6.3 (20) · BE K (14) · HU V/h (8) · DE 77h.5 (6) · IT 8 (5) · AT 77d (3) · USPC 244/48 (2) · USPC 244/78.1 (2) · USPC 244/79 (2) · USPC 244/104R (2) · USPC 244/82 (2) · USPC 244/87 (2) · RU Group V (2) · USPC 244/35R (2) · FR 6.2 (2) · FR 6.1 (2) · CH 129b (2) · DE 77h.15 (2)
IPCs:
IPC B64C17/00 (193) · IPC B64C1/00 (155) · None (98) · IPC B64C39/00 (27) · IPC B64C17/06 (27) · IPC B64B1/00 (19) · IPC B64C3/38 (15) · IPC B64C13/00 (10) · IPC B64B1/58 (8) · IPC B64C25/00 (6) · IPC B64C3/54 (5) · IPC B64C3/00 (4) · IPC B64C3/52 (4) · IPC B64C13/04 (4) · IPC B64C33/00 (4) · IPC B64B1/40 (4) · IPC B64C33/02 (4) · CPC B64C17/00 (4)
CPCs:
CPC B64C17/00 (209) · CPC B64C2700/6218 (76) · None (69) · CPC B64C2700/6212 (35) · CPC B64C17/06 (31) · CPC B64C2700/6214 (28) · CPC B64C2700/6216 (21) · CPC B64C2700/6219 (20) · CPC B64C13/00 (19) · CPC B64C39/00 (19) · CPC B64B1/00 (19) · CPC B64C3/385 (16) · CPC B64C1/00 (15) · CPC B64C2700/6295 (13) · CPC B64C2700/6256 (13) · CPC B64C2700/6215 (11) · CPC B64B1/58 (8) · CPC B64C33/02 (7) · CPC B64C9/00 (7)
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