Title:
Toilet ventilating system
United States Patent 3122757
US Patent References:
Flushing tank
- - 1501620

Toilet ventilator
- - 1931052

Ventilating and flushing apparatus for water closets
- - 2449134

Waste flow control
- - 2575905


Inventors:
Sowards, Edward W.
Publication Date:
03/03/1964
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Assignee:
Sowards, Edward W.
Primary Class:
4/213
Other Classes:
137/519.500
International Classes:
E03D9/052; E03D9/04
Foreign References:
FR47166A