United States Patent 1778465
Inventors:
Kenneth, Ozanne Bryce
Publication Date:
10/14/1930
Assignee:
Kenneth, Ozanne Bryce
Other Classes:
318/68, 191/2, 104/301, 307/140, 318/55, 318/16, 318/80, 318/103, 318/91
International Classes:
A63H19/24; A63H19/00