Pump
United States Patent 2804023
US Patent References:
/0328472.html
- - 0328472

Pump
- - 1988337

Rotary pump of the resilient tube type
- - 2693766

Lift
- - 2694984


Inventors:
Lee, John C.
Publication Date:
08/27/1957
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Assignee:
MR ROBOT INC
Primary Class:
417/477.700
Other Classes:
417/477.900
International Classes:
F04B43/12