Henry J and William A Roth, no location.
Roth Artist's concept (clip: 1935 Modern Mechanix & Science)
c.1935 = No data found for yet another design project that calls for some suspension of belief. This one wore a series of individually powered turbine impellers for lift and thrust, and was modestly described as the "plane that may revolutionize flying." Art by Douglas Rolfe from patent drawings.
