US PATENT SUBCLASS 159 / 43.2
.~ With alternating operating means

Current as of: June, 1999
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159 /   HD   CONCENTRATING EVAPORATORS

43.1  DF  FLUID FEED OR DISCHARGE DEVICES {2}
43.2.~ With alternating operating means

DEFINITION

Classification: 159/43.2

With alternating operating means:

(under subclass 43.1) Subject matter with means operating either or both of the feed or discharge devices successively in any arrangement.