US PATENT SUBCLASS 159 / 4.1
.~.~ Heat recovery

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

3  DF  SPRAY TYPE {1}
4.01  DF  .~ Gaseous current {12}
4.1.~.~ Heat recovery

DEFINITION

Classification: 159/4.1

Heat recovery:

(under subclass 4.01) Apparatus with means to recover heat.