Pumping apparatus
United States Patent 2429940
US Patent References:
/0572449.html
- - 0572449


Inventors:
Mcdaniel, James M.
Publication Date:
10/28/1947
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Assignee:
Mcdaniel, James M.
Primary Class:
417/209
Other Classes:
392/485, 392/301, 392/471
International Classes:
F04F1/06; F04F1/00
Foreign References:
AT43191B