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Patents > CPCs : CPC B64B1/00 or CPC B64C39/00 & Number of diagram pages: None

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None (243) · LTA (75) · propulsion (21) · frame (20) · navigation (14) · propeller (11) · stability (9) · dirigible (9) · airplane (7) · safety (7) · hybrid (7) · propellers (6) · construction (6) · balloon (5) · design (5) · car (5) · dirigibles (5) · rigid (4)
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None (231) · FR 6.4 (58) · USPC 244/30 (17) · FR 6.3 (10) · USPC 244/26 (7) · USPC 244/97 (3) · USPC 244/29 (3) · USPC 244/93 (2) · USPC 244/91 (2) · USPC 244/139 (2) · FR 6.2 (2) · USPC 244/125 (2)
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