US PATENT SUBCLASS 55 / 473
.~ Impeller upstream of separating media

Current as of: June, 1999
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55 /   HD   GAS SEPARATION

467  DF  WITH GAS FLOW EFFECTING MEANS {7}
473.~ Impeller upstream of separating media

DEFINITION

Classification: 55/473

(under subclass 467) Apparatus in which the forcing means is located ahead of the separating media, or of at least one of a plurality of serially arranged separating media, in relation to the direction of gas flow.