United States Patent 3053416
Inventors:
Harner, George S.
Publication Date:
09/11/1962
Assignee:
Harner, George S.
Other Classes:
42/1.080, 340/574, 109/36, 472/52, 340/571, 340/568.700, 116/67R, 116/2, 109/32, 222/638
International Classes:
G08B15/00