United States Patent 3213846
Inventors:
Rogers Jr., Stephen L.
Leonard, Raulston James
Publication Date:
10/26/1965
Assignee:
Rogers Jr., Stephen L.
Leonard, Raulston James
Other Classes:
126/552, 126/153
International Classes:
F24B1/181; F24B1/182; F24B1/193; F24B1/00