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Patents > CPCs : CPC B64C23/005 or CPC B64C39/00 & Number of claims: None & Number of figures: None

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None (348) · airplane (19) · propulsion (11) · navigation (7) · stability (6) · aerodynamics (5) · subsystem (4) · frame (4) · design (4) · lift (3) · motors (3) · construction (3) · pendulum (3) · helicopter (3) · airfoil (3)
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None (321) · FR 6.4 (19) · USPC 244/6 (7) · USPC 244/66 (4) · USPC 244/12.1 (4) · USPC 244/60 (3) · USPC 244/13 (2) · USPC 244/91 (2) · USPC 244/80 (2) · USPC 244/65 (2) · USPC 244/139 (2) · USPC 244/48 (2) · USPC 244/119 (2) · USPC 244/53R (2)
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