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Patents > Tech fields : airplane or springs & Number of figures: 4

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None (296) · Budapest (6) · Nord (4) · Seine (4) · Meurthe-et-Moselle (3) · Loire (3) · County of London (2) · Nièvre (2) · Manche (2) · London (2) · Hérault (2) · New York City (2) · Eure (2) · New York county (2) · Seine-et-Oise (2)
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None (233) · Patent US-1910-1041876 (5) · Patent FR-1906-363017 (3) · Patent FR-1909-420322 (3) · Patent US-1913-04-21 George Raymond Lawrence (3) · Patent DE-1912-06-24 Julius Pompe (3) · Patent NO-1915-12-15 Carl Alfred Johansson (3) · Patent FR-1907-373818 (2) · Patent IT-1915-148941 (2) · Patent FR-1909-399456 (2) · Patent FR-1910-420958 (2) · Patent BE-1911-240352 (2) · Patent BE 1911-04-07 Bollekens frères (2) · Patent US-1916-1289206 (2) · Patent US-1914-1133643 (2)
Related to aircraft:
Patent agent:
None (111) · None (15) · Armengaud jeune (14) · J. Bonnet-Thirion (9) · Charles Dony (8) · L. Chassevent (8) · Weismann et Marx (6) · Hippolyte Josse (6) · Victor J. Evans (5) · E. Blétry (5) · Haseltine, Lake & Co. (5) · Marks & Clerk (4) · Brandon frères (4) · Munn & Co. (3) · Schwab (3) · Émile Bert (3) · Société A. Frey et de Carsalade (3) · Y. Rabilloud et fils (3) · Abel & Imray (3) · A. Ritter (3)
National tech categories:
FR 6.4 (142) · None (65) · HU V/h (33) · AT 77d (17) · DE 77h.5 (8) · CH 129b (5) · USPC 244/87 (3) · USPC 244/46 (3)
IPCs:
None (132) · IPC B64C39/00 (37) · IPC B64C17/00 (29) · IPC B64C1/00 (28) · IPC B64C23/00 (9) · IPC B64C3/38 (9) · IPC B64C3/00 (9) · IPC B64C13/00 (7) · IPC B64C25/00 (6) · IPC B64C11/00 (5) · IPC B64C3/56 (5) · IPC B64C35/00 (4) · IPC B64D17/00 (4)
CPCs:
None (85) · CPC B64C17/00 (37) · CPC B64C39/00 (31) · CPC B64C2700/6295 (18) · CPC B64C13/00 (15) · CPC B64C2700/6218 (14) · CPC B64C23/005 (11) · CPC B64C3/385 (10) · CPC B64C3/00 (10) · CPC B64C1/00 (7) · CPC B64C39/08 (7) · CPC B64C2700/6274 (6) · CPC B64C3/14 (6) · CPC B64C2700/6214 (5) · CPC B64D17/00 (5) · CPC B64C2700/6233 (5) · CPC B64C3/56 (5) · CPC B64C25/06 (5) · CPC B64C2700/6256 (5)
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