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Patents > Tech fields : construction or hybrid or lift or propellers & Number of figures: 8-50000000

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Supplementary to patent:
None (297) · Patent GB-1908-4519 (6) · Patent BE-1910-230887 (3) · Patent US-1909-970771 (3) · Patent HU-1901-24148 (3) · Patent GB-1912-26911 (3) · Patent FR-1909-403985 (3) · Patent FR-1911-448337 (3) · Patent AT-1912-75092 (3) · Patent AT-1909-12-31 Vigilio Baldo (3)
Related to aircraft:
Patent agent:
None (115) · Armengaud jeune (32) · None (16) · Boult, Wade & Tennant (10) · Munn & Co. (9) · Lavoix et Mosès (8) · John P. Tarbox (7) · Charles Dony (6) · Haseltine, Lake & Co. (6) · Dupont et Elluin (6) · Ch. Mardelet (4) · Victor J. Evans (4) · Marks & Clerk (4) · L. Chassevent (4) · H. Bœttcher fils (4) · H. D. Fitzpatrick & Co. (4) · Weismann et Marx (4) · J. Bonnet-Thirion (4)
National tech categories:
FR 6.4 (143) · None (136) · HU V/h (33) · FR 6.2 (10) · FR 6.3 (8) · USPC 244/35R (6) · USPC 244/11 (5) · USPC 244/22 (5) · USPC 244/87 (4) · RU Group V (4) · AT 77d (4) · BE K (4) · CH 129b (4)
IPCs:
None (181) · IPC B64C39/00 (33) · IPC B64C1/00 (24) · IPC B64C3/00 (21) · IPC B64C11/00 (16) · IPC B64C17/00 (14) · IPC B64C23/00 (13) · IPC B64C3/18 (12) · IPC B64C35/00 (9) · IPC B64C33/00 (8) · IPC B64C3/38 (8) · IPC B64B1/00 (8) · IPC B64C1/06 (7) · IPC B64C33/02 (6) · IPC B64C27/04 (6) · IPC B64C25/00 (6) · IPC B64C3/52 (5) · IPC B64C3/56 (5) · IPC B64C3/48 (5) · IPC B63H1/12 (5)
CPCs:
None (99) · CPC B64C23/005 (23) · CPC B64C17/00 (21) · CPC B64C3/00 (21) · CPC B64C39/00 (19) · CPC B64B1/00 (15) · CPC B64C2700/6295 (15) · CPC B64C33/02 (12) · CPC B64C33/00 (11) · CPC B64C11/006 (11) · CPC B64C2700/6274 (10) · CPC B64C35/00 (10) · CPC B64C2700/6233 (10) · CPC B64C2001/0063 (9) · CPC B64C2700/6218 (9) · CPC B64C39/005 (8) · CPC B64C1/00 (8) · CPC B64C3/385 (8) · CPC B64C3/18 (8)
First filing:
Citations from after 1930:

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