Title:
Surface drains
United States Patent 2783852
US Patent References:
/0289663.html
- - 0289663

/0306859.html
- - 0306859

/0924834.html
- - 0924834

Roof drain
- - 1434254

Drain connection
- - 1608115


Inventors:
Sisk, Martin A.
Publication Date:
03/05/1957
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Assignee:
Sisk, Martin A.
Primary Class:
210/165
Other Classes:
4/292, 210/462
International Classes:
E03F5/04
US Patent References:
1830065Floor drain
2001830Repair valve seat
2101978Floor drain
2161783Two-way test and waste plug
2478976Backwater controlling device
2550402Floor drain
2607434Surface drain
Foreign References:
NL55408C