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Patents > Tech fields : aerial propeller or wings & Number of text pages: 3-4

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None (269) · Seine (5) · Budapest (2) · Orne (2) · Seine-et-Oise (2) · England (2) · Finistère (2) · Vaucluse (2) · Bouches-du-Rhône (2)
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None (204) · Patent US-1909-970771 (4) · Patent AT-1912-75092 (4) · Patent GB-1908-4519 (3) · Patent SE-1906-25199 (3) · Patent GB-1911-12232‎‎ (3) · Patent FR-1911-448574 (2) · Patent FR-1909-420884 (2) · Patent US-1910-993987 (2) · Patent AU-1914-14892 (2) · Patent AT-1912-63049 (2) · Patent SE-1906-23283 (2) · Patent CH-1912-62201 (2) · Patent FR-1908-407090 (2) · Patent FR-1909-403985 (2) · Patent FR-1911-438355 (2) · Patent FR-1911-448337 (2) · Patent HU-1910-59091 (2)
Related to aircraft:
Patent agent:
None (75) · Armengaud jeune (34) · None (13) · Weismann et Marx (11) · G. de Mestral et F. Harlé (7) · Hippolyte Josse (6) · Marks & Clerk (6) · Abel & Imray (5) · Louis Tailfer (5) · W. P. Thompson & Co. (5) · Haseltine, Lake & Co. (5) · L. Chassevent (4) · E. Blétry (4) · Brandon frères (3) · E. Blum & Co. (3) · Brierley & Howard (3) · C. Blétry (3) · Munn & Co. (3)
National tech categories:
FR 6.4 (119) · None (96) · HU V/h (16) · AT 77d (10) · DK 77 (5) · CH 129b (4) · DE 77h.5 (3) · USPC 244/22 (3) · DE 77h.7 (3) · FR 6.3 (3) · USPC 244/90R (3) · USPC 244/80 (3)
IPCs:
None (108) · IPC B64C39/00 (28) · IPC B64C1/00 (17) · IPC B64C3/00 (17) · IPC B64C17/00 (16) · IPC B64C33/02 (11) · IPC B64C3/56 (11) · IPC B64C3/54 (9) · IPC B64C3/52 (8) · IPC B64C13/00 (8) · IPC B64C23/00 (8) · IPC B64C3/48 (6) · IPC B64C11/00 (5) · IPC B64C3/38 (5) · IPC B64C33/00 (5) · IPC B64C11/16 (4)
CPCs:
None (62) · CPC B64C3/00 (20) · CPC B64C17/00 (20) · CPC B64C39/00 (16) · CPC B64C2700/6233 (16) · CPC B64C2700/6295 (15) · CPC B64C13/00 (14) · CPC B64C33/02 (14) · CPC B64C3/56 (13) · CPC B64C23/005 (10) · CPC B64C3/54 (9) · CPC B64C3/52 (9) · CPC B64C2700/6256 (9) · CPC B64C2700/6218 (8) · CPC B64C3/48 (7) · CPC B64C3/14 (6) · CPC B64C33/00 (6) · CPC B64C1/00 (5) · CPC B64C11/006 (5) · CPC B64C2700/6274 (5)
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