US PATENT SUBCLASS 210 / 156
.~.~ Fluid stream or residue operated

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

153  DF  STRUCTURAL INSTALLATION {6}
154  DF  .~ Flume stream type {7}
156.~.~ Fluid stream or residue operated {1}
157  DF  .~.~.~> Revolving cylindrical strainer

DEFINITION

Classification: 210/156

(under subclass 154) Apparatus moved by the flowing stream or by a collection of residue on the separator medium.

SEE OR SEARCH THIS CLASS, SUBCLASS:

354+, for filter structure similarly operated.