Drilldown: Patents

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Patents > Patent agent: None & CPCs : CPC B64B1/00 or CPC B64C33/00

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Tech fields:
LTA (163) · None (158) · propulsion (59) · frame (46) · navigation (44) · balloon (35) · propeller (29) · dirigible (23) · airship (20) · car (20) · stability (19) · design (18) · hybrid (17) · safety (16) · rudder (15) · airplane (14) · flapping (12) · wings (12) · compartments (11) · control (11)
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National tech categories:
None (149) · FR 6.4 (67) · USPC 244/30 (34) · FR 6.3 (22) · DE 77 (18) · USPC 244/26 (15) · DE 77h.2 (12) · USPC 244/25 (9) · USPC 244/28 (8) · USPC 24/713.8 (7) · USPC 244/125 (7) · USPC 244/11 (7) · USPC 244/29 (5) · USPC 244/99 (5) · USPC 244/127 (4) · USPC 244/67 (4)
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