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Louis John Bergdoll
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Individual
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Publication of GB191317380ApublicationCriticalpatent/GB191317380A/en
17,380. Bergdoll, L. J. July 29. Aerial machines without aerostats; planes, construction and arrangement of.--Tne plane or planes 4 of an aeroplane are mounted within a circular, elliptical, or other closed-curve member 6 open at both ends, the axis of which is in the line of flight. The motor 7, seats, &c are placed below the planes, and the propellers 9 are arranged behind the planes. A steering-tail 5 is provided.
GB191317380D1913-07-291913-07-29Improvements in or relating to Aeroplanes.
ExpiredGB191317380A
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