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B64C23/00—Influencing air flow over aircraft surfaces, not otherwise provided for
B64C23/005—Influencing air flow over aircraft surfaces, not otherwise provided for by other means not covered by groups B64C23/02 - B64C23/08, e.g. by electric charges, magnetic panels, piezoelectric elements, static charges or ultrasounds
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FR535640D1921-05-071921-05-07
Vertical take-off and landing device for airplanes
ExpiredFR535640A
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