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Patents > Tech fields : airfoil or hybrid

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Inventor location:
None (675) · Nord (9) · Seine (8) · Seine-et-Oise (5) · New York state (5) · Brussels (4) · Hérault (4) · London (4) · New York county (4) · New York city (4) · New York (4) · Budapest (4) · Charente-Inférieure (3) · England (3) · Allegheny county, Pennsylvania (3) · Pittsburgh (3) · PA (3)
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Full specification filed date:
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Supplementary to patent:
None (541) · Patent BE-1909-214032 (31) · Patent AU-1914-14892 (4) · Patent BE-1913-255172 (4) · Patent FR-1908-407090 (4) · Patent BE-1909-218585 (4) · Patent BE-1907-198483 (4) · Patent DE-1907-240268 (4) · Patent AT-1912-75092 (4) · Patent FR-1909-410140 (4)
Related to aircraft:
National tech categories:
FR 6.4 (170) · None (167) · BE K (61) · FR 6.3 (24) · AT 77d (18) · DE 77h.5 (18) · HU V/h (15) · USPC 244/22 (14) · USPC 244/35R (14) · USPC 244/6 (11) · USPC 244/64 (11) · DE 77h (10) · USPC 244/45R (10) · USPC 244/11 (10) · AU 90.3 (8) · RU Group V (8) · DE 77h.7 (8) · USPC 244/25 (8) · IT 8 (8)
IPCs:
None (456) · IPC B64B1/00 (40) · IPC B64C23/00 (38) · IPC B64C39/00 (28) · IPC B64C33/02 (18) · IPC B64C27/04 (17) · IPC B64C35/00 (17) · IPC B64C17/00 (14) · IPC B64C3/38 (14) · IPC B64C33/00 (13) · IPC B64C1/00 (12) · IPC B64C3/00 (12) · IPC B64B1/58 (10) · IPC B64C3/56 (8) · IPC B64C3/52 (7) · IPC B64C27/00 (6) · IPC B64C3/48 (6) · IPC B64B1/40 (5) · IPC B64C11/00 (5) · IPC B64C3/14 (5)
CPCs:
None (257) · CPC B64B1/00 (65) · CPC B64C23/005 (62) · CPC B64C33/02 (33) · CPC B64C35/00 (22) · CPC B64C2700/6295 (22) · CPC B64C3/14 (21) · CPC B64C33/00 (20) · CPC B64C39/00 (20) · CPC B64C2700/6274 (19) · CPC B64C39/005 (18) · CPC B64C3/385 (17) · CPC B64C3/00 (14) · CPC B64C17/00 (14) · CPC B64B1/58 (14) · CPC B64C3/56 (11) · CPC B64C39/08 (11) · CPC B64C27/04 (11) · CPC B64C2700/6281 (10) · CPC B64C13/00 (9)
First filing:
Citations from after 1930:
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