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Description
English: Figure-1 from U.S. Patent Re19,412, "Aircraft and Control Thereof," dated January 1, 1935, E.F. Zaparka, inventor. This patent describes, and this image shows, a movable "microflap" similar to the fixed Gurney flap independently discovered and first used by Dan Gurney in 1971.
Date
Source U.S. Patent Re19,412
Author E.F. Zaparka
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  • 2007-07-07 01:24 Dhaluza 1547×777× (39645 bytes) Figure-1 from {{US patent|Re19412}}, "Aircraft and Control Thereof," dated January 1, 1935, E.F. Zaparka, inventor. This patent describes, and this image shows, a movable "microflap" similar to the fixed [[Gurney flap]] independently discovered and first

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1 January 1935

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35be956d09497ac8be55369ffda37c2bfb5aaca5

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current06:08, 28 August 2012Thumbnail for version as of 06:08, 28 August 20121,547 × 777 (39 KB)File Upload Bot (Magnus Manske)Transfered from en.wikipedia by User:Ariadacapo using CommonsHelper

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