Means for pumping fluids
United States Patent 1852242

Inventors:
Holt, Claude G.
Publication Date:
04/05/1932
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Assignee:
Holt, Claude G.
Primary Class:
417/388
Other Classes:
417/474, 417/392, 417/383, 417/394, 417/254
International Classes:
F04B43/10; F04B43/00