United States. Infantry and Cavalry School, Fort Leavenworth. Dept of Engineering
Edwin Alvin Root
William D. Beach
United States. Infantry and cavalry school, Fort Leavenworth. Dept. of engineering
United States. Infantry and Cavalry School, Fort Leavenworth. Dept. of Engineering.
United States. Army. Corps of Engineers.
United States. Congress. Senate. Committee on Patents
David Frye
J. B. A. Bailey
Headquarters Department of the Army
Unknown Author
Dmitriĭ Mikhaĭlovich Karbyshev
Wilford Brett
Guillaume Le Blond
Brett, Wilford Sir
Juan Belaieff
James Adams
Mikhail Pavlovich Smirnov
J. S. Macaulay