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Patents > CPCs : CPC B64B1/40 or CPC B64C23/005 or CPC B64C3/385

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Tech fields:
None (390) · airplane (198) · LTA (122) · Frame (98) · stability (95) · navigation (82) · propulsion (82) · design (65) · hybrid (58) · propeller (58) · balloon (51) · helicopter (50) · wings (44) · control (42) · lift (35) · Construction (35) · propellers (34) · rudder (33) · aerodynamics (31) · ascension (30)
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Supplementary to patent:
None (723) · Patent FR-1909-410140 (5) · Patent US-1912-1062545 (3) · Patent FR-1912-449167 (3) · Patent FR-1908-392672 (3) · Patent BE-1912-02-07-Gramaticesco (3)
Related to aircraft:
National tech categories:
None (323) · FR 6.4 (225) · USPC 244/6 (49) · USPC 244/48 (30) · USPC 244/66 (20) · USPC 244/127 (17) · USPC 244/12.1 (16) · DE 77 (14) · DE 77h.5 (14) · USPC 244/32 (13) · USPC 244/96 (12) · FR 6.3 (11) · USPC 244/33 (10) · USPC 244/99.11 (9) · USPC 244/80 (9) · DE 77h (8) · USPC 244/119 (8) · USPC 244/31 (8) · USPC 244/38 (8) · USPC 244/90R (7)
IPCs:
None (445) · IPC B64C23/00 (172) · IPC B64C3/38 (150) · IPC B64B1/40 (71) · IPC B64B1/00 (21) · IPC B64C23/005 (9) · IPC B64C3/00 (8) · IPC B64C39/00 (4)
CPCs: (Click arrow to add another value)
First filing:
Cites these patents:
None (875)
Citations from after 1930:
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