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Patents > Tech fields : tail fin or wings & Number of text pages: 2-3

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Supplementary to patent:
None (306) · Patent FR-1907-373818 (7) · Patent FR-1908-392672 (6) · Patent AT-1912-75092 (5) · Patent SE-1906-25199 (4) · Patent BE-1911-04-14 Lucien-Constant-Joseph Harel (4) · Patent SE-1906-23283 (4) · Patent FR-1908-407090 (4) · Patent IT-1914- (3) · Patent US-1909-970771 (3) · Patent DE-1912-03-18 Allgemeine Elektricitäts-Gesellschaft‎‎ (3) · Patent AT-1907-37570 (3)
Related to aircraft:
Patent agent:
None (194) · Armengaud jeune (54) · None (16) · G. de Mestral et F. Harlé (13) · Hippolyte Josse (12) · Weismann et Marx (11) · L. Chassevent (9) · E. Blétry (9) · W. P. Thompson & Co. (9) · J. Bonnet-Thirion (8) · Marks & Clerk (7) · C. Blétry (6) · Haseltine, Lake & Co. (6) · Émile Bert (5) · Louis Tailfer (5) · Charles Dony (5)
National tech categories:
FR 6.4 (241) · None (99) · HU V/h (41) · AT 77d (35) · DE 77h.5 (27) · DK 77 (9) · DE 77h.7 (8) · FR 6.3 (7) · USPC 244/22 (4) · RU Group V (4) · DE 77h (4) · CH 129c (3) · FR 5.3 (3) · DE 77h.10 (3) · USPC 244/90R (3)
IPCs:
None (163) · IPC B64C3/00 (42) · IPC B64C39/00 (41) · IPC B64C1/00 (30) · IPC B64C17/00 (30) · IPC B64C33/02 (25) · IPC B64C3/38 (20) · IPC B64C3/54 (19) · IPC B64C3/56 (15) · IPC B64C3/52 (14) · IPC B64C13/00 (14) · IPC B64C23/00 (13) · IPC B64C3/48 (12) · IPC B64C3/14 (9) · IPC B64C11/00 (7) · IPC B64B1/00 (7)
CPCs:
None (125) · CPC B64C3/00 (44) · CPC B64C17/00 (32) · CPC B64C39/00 (29) · CPC B64C33/02 (29) · CPC B64C2700/6295 (26) · CPC B64C2700/6233 (22) · CPC B64C13/00 (21) · CPC B64C3/54 (18) · CPC B64C3/385 (16) · CPC B64C3/56 (16) · CPC B64C3/52 (15) · CPC B64C3/48 (13) · CPC B64C23/005 (12) · CPC B64C2700/6256 (11) · CPC B64C33/00 (11) · CPC B64C3/14 (10) · CPC B64C2700/6218 (10) · CPC Y02T50/166 (9) · CPC B64B1/00 (9)
First filing:
Citations from after 1930:
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