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Patents > CPCs : CPC B64C17/00 or CPC B64C23/005 or CPC B64C2700/6246

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Tech fields:
stability (475) · None (471) · Airplane (442) · automatic stability (199) · design (131) · frame (113) · control (111) · aerodynamics (86) · propulsion (78) · wings (74) · navigation (67) · Equilibrium (64) · Subsystem (59) · propeller (57) · Construction (57) · hybrid (54) · rudder (54) · lift (53) · helicopter (51) · propellers (48)
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National tech categories:
None (493) · FR 6.4 (486) · USPC 244/80 (67) · USPC 244/6 (48) · DE 77h.5 (24) · USPC 244/93 (20) · USPC 244/66 (20) · USPC 244/12.1 (16) · USPC 244/177 (13) · USPC 244/139 (8) · USPC 244/92 (8) · USPC 244/90R (7) · FR 6.3 (7) · USPC 244/60 (6) · USPC 244/100R (6) · USPC 244/35R (5) · DE 77 (5) · USPC 244/87 (5) · USPC 244/104R (4) · USPC 244/48 (4)
IPCs:
None (536) · IPC B64C17/00 (526) · IPC B64C1/00 (279) · IPC B64C23/00 (172) · IPC B64C3/54 (17) · IPC B64C23/005 (9) · CPC B64C17/00 (9) · IPC B64C17/04 (4) · IPC B64C3/38 (3) · IPC B64C3/48 (3)
CPCs: (Click arrow to add another value)
First filing:
Cites these patents:
None (1275) · 0 (2)
Citations from after 1930:
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