Sediment evacuating implement
United States Patent 2081597

Inventors:
Nowak, Emil H.
Publication Date:
05/25/1937
View Patent Images:
Download PDF 2081597 pdf       PDF help
Export Citation:
Click for automatic bibliography generation
Assignee:
Nowak, Emil H.
Primary Class:
15/1.700
Other Classes:
15/236.010, 137/577.500, 15/401, 401/266, 401/289
International Classes:
E03B11/00