Title:
Roof drain
United States Patent 1991772


Inventors:
Rieger, Edward M.
Wayne, Paulin
Zurn, Melvin A.
Application Number:
US65350233A
Publication Date:
02/19/1935
Filing Date:
01/25/1933
Assignee:
J A ZURN MFG COMPANY
Primary Class:
Other Classes:
210/460
International Classes:
E04D13/04
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