United States Patent 3348528
Inventors:
White Jr., Herbert A.
Publication Date:
10/24/1967
Assignee:
White Jr., Herbert A.
Other Classes:
138/145, 165/133, 138/DIG.003, 138/DIG.006, 165/178
International Classes:
F28F9/10; F28F19/00; F28F19/04; F28F9/04