Title:
Roof drain
United States Patent 1918509


Inventors:
Wilcox, Paul M.
Application Number:
US50711031A
Publication Date:
07/18/1933
Filing Date:
01/07/1931
Assignee:
WILCOX DRAIN CORP
Primary Class:
Other Classes:
4/286, 4/650, 210/483, 285/42
International Classes:
E04D13/04
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