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Patents > Office : DE or Other & CPCs : CPC B64B1/00 or CPC B64C3/00 & Number of figures: None

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Tech fields:
None (210) · LTA (107) · frame (29) · propulsion (25) · navigation (16) · propeller (14) · balloon (14) · Airplane (12) · dirigible (10) · design (10) · hybrid (10) · stability (9) · safety (9) · construction (8) · car (6) · fabric (6) · rigid (5) · Dirigibles (5) · wings (5) · subsystem (5)
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None (190) · FR 6.4 (74) · USPC 244/30 (21) · FR 6.3 (12) · USPC 244/26 (10) · USPC 244/125 (6) · USPC 24/713.8 (6) · USPC 244/29 (5) · USPC 244/25 (5) · USPC 244/28 (3) · USPC 244/93 (3) · DE 77h.2 (3) · USPC 244/67 (3) · USPC 244/97 (3) · USPC 244/128 (3) · USPC 244/119 (2) · FR 6.2 (2) · DE 77h (2) · USPC 244/123.4 (2) · USPC 244/139 (2)
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