US PATENT SUBCLASS 417 / 245
.~ Fluid motor for one stage supplied from another stage

Current as of: June, 1999
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417 /   HD   PUMPS

244  DF  SUCCESSIVE STAGES {8}
245.~ Fluid motor for one stage supplied from another stage

DEFINITION

Classification: 417/245

(under subclass 244) Apparatus in which one of the pumping units is driven by a fluid motor, the motive fluid for operating the fluid motor being provided from another of the pumping units in the series.