Barrel washing machine
United States Patent 2133481

Inventors:
Schroeder, Carl J.
Publication Date:
10/18/1938
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Assignee:
STANDARD OIL CO
Primary Class:
134/58R
Other Classes:
198/832, 134/111, 134/107, 134/181, 134/72, 134/144
International Classes:
B08B9/08