Drilldown: Patents

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Patents > CPCs : CPC B64C17/00 or CPC B64C23/005 or CPC B64C39/00 & Number of claims: None & Number of figures: None

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None (600) · airplane (35) · stability (28) · propulsion (12) · Frame (9) · subsystem (9) · navigation (9) · automatic stability (9) · aerodynamics (8) · aeroplane (7) · Design (7) · pendulum (5) · helicopter (5) · propellers (5) · hybrid (5) · airfoil (5) · propeller (4) · construction (4) · lift (4)
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None (536) · FR 6.4 (36) · USPC 244/6 (14) · USPC 244/80 (11) · USPC 244/93 (8) · USPC 244/92 (6) · USPC 244/12.1 (5) · USPC 244/66 (4) · USPC 244/233 (3) · USPC 244/139 (3) · USPC 244/60 (3) · USPC 244/119 (3) · USPC 244/104R (3) · USPC 244/91 (3) · USPC 244/48 (3)
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