US PATENT SUBCLASS 210 / 257.1
.~ With storage unit

Current as of: June, 1999
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210 /   HD   LIQUID PURIFICATION OR SEPARATION

252  DF  SERIALLY CONNECTED DISTINCT TREATING WITH OR WITHOUT STORAGE UNITS {7}
257.1.~ With storage unit {1}
257.2  DF  .~.~> Having membrane

DEFINITION

Classification: 210/257.1

With storage unit:

(under subclass 252) Apparatus in which at least one of the units merely holds liquid.

SEE OR SEARCH CLASS

137, Fluid Handling,

571+, for plural tanks or compartments connected for serial flow.

184, Lubrication,

1.5, for crankcase service apparatus including separators.