Means for purifying toilet gases
United States Patent 2238461

Inventors:
Carman, James W.
Publication Date:
04/15/1941
View Patent Images:
Download PDF 2238461 pdf       PDF help
Export Citation:
Click for automatic bibliography generation
Assignee:
Carman, James W.
Primary Class:
4/213
Other Classes:
96/351
International Classes:
E03D9/052; E03D9/04