ROOF DRAIN
United States Patent 3469699
US Patent References:
Strainer assembly for floor drains
- - 3349917

Roof drain
- - 3357561


Inventors:
Blendermann, Louis
Scheuer, Nicholas G.
Publication Date:
09/30/1969
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Assignee:
JOSAM MFG CO
Primary Class:
210/166
International Classes:
E04D13/04; E03F5/06; E03F5/14




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