#OnThisDay 1906: The Wright brothers are granted U.S. patent number 821,393 for their “Flying-Machine”. #OnThisDay — https://t.co/X0dpdJa1sy
May 22, 2013
@louistrapani (Louis Trapani): #OnThisDay 1906: The... - App.net
louistrapani: #OnThisDay 1906: The Wright brothers are granted U.S. patent number 821,393 for their "Flying-Machin...