Inside Out Library · Explore
Neyen - Screw plane, German Patent 222868 of 1910 (1910)
Emil Neyen · leaf 2
mt VE, Heer RTESIEN FD FA: A Lan # NT (22) Hl ' N A) ST f N IS AEN rg 7 1 IPatents · German patents · Aircraft · Flying machines · Helicopters
Internet Archive · Public Domain Mark 1.0. Free to use for anything.
More pictures from Neyen - Screw plane, German Patent 222868 of 1910
More like this
