US PATENT SUBCLASS 210 / 199
.~ Spaced along flow path

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

198.1  DF  WITH MEANS TO ADD TREATING MATERIAL {5}
199.~ Spaced along flow path

DEFINITION

Classification: 210/199

(under subclass 198.1) Apparatus wherein at least two distinct treating material feeding means supply to inlets spaced with respect to the direction of the flow of material being treated.