Title:
Ventilated closet bowl
United States Patent 2351560

Inventors:
Thompson, Alfred W.
Armstrong, James B.
Publication Date:
06/13/1944
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Assignee:
Thompson, Alfred W.
Armstrong, James B.
Primary Class:
4/213
Other Classes:
200/61.860
International Classes:
E03D9/052; E03D9/04