Cleaning process for urinal metal traps
United States Patent 2311196
Inventors:
Ahern, Edward T.
Publication Date:
02/16/1943
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Assignee:
Ahern, Edward T.
Primary Class:
Other Classes:
134/167C, 4/255.080, 138/93, 134/28, 4/255.010
International Classes:
E03C1/302; E03C1/12