United States Patent 2873929
Inventors:
Meyer, Leonard S.
Shira, George A.
Publication Date:
02/17/1959
Assignee:
PARALLEL PRODUCTS COMPANY
Other Classes:
124/23.100, 242/400.100, 124/88, 242/405.100, 242/613.100
International Classes:
F41B5/14; F41B5/00