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Patents > Applicant firm: None & Tech fields : Design or rudder

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Related to aircraft:
National tech categories:
FR 6.4 (553) · None (342) · HU V/h (113) · BE K (98) · AT 77d (35) · DE 77h.5 (30) · FR 6.2 (24) · FR 6.3 (20) · CH 129b (18) · GB 4 propel & steer (16) · DK 77 (15) · IT 8 (13) · GB 4 with buoyant (13) · USPC 244/87 (11) · USPC 244/22 (10) · USPC 244/233 (10) · USPC 244/90R (10)
IPCs:
None (759) · IPC B64C39/00 (138) · IPC B64C17/00 (102) · IPC B64C1/00 (95) · IPC B64B1/00 (49) · IPC B64C13/00 (37) · IPC B64C3/00 (35) · IPC B64C23/00 (34) · IPC B64C11/00 (29) · IPC B64C3/38 (27) · IPC B64C33/02 (25) · IPC B64C35/00 (24) · IPC B64C25/00 (19) · IPC B64C3/54 (18) · IPC B64B1/58 (15) · IPC B64C33/00 (15) · IPC B64C3/56 (14) · IPC B64C3/18 (14) · IPC B64C27/04 (12) · IPC B64B1/40 (12)
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