Ventilating apparatus for closets or toilets
United States Patent 2849727
US Patent References:
/0331120.html
- - 0331120

/0470740.html
- - 0470740

/0962490.html
- - 0962490

Ventilating device
- - 1794635

/1819521.html
- - 1819521


Inventors:
Bollinger, Edward N.
Hauck Sr., William J.
Publication Date:
09/02/1958
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Assignee:
Bollinger, Edward N.
Hauck Sr., William J.
Primary Class:
4/217
Other Classes:
4/348
International Classes:
E03D9/052; E03D9/04
US Patent References:
2320065Toilet ventilator
2322515Toilet ventilating system
2516432Fluid film closure for building entrances and exits
2726405Forced-draft ventilator for toilet bowls
Foreign References:
GB481991A