US PATENT SUBCLASS 159 / 12
.~.~ Inclosing chamber

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

5  DF  FILM TYPE {4}
11.1  DF  .~ Rotary drum or disk {2}
12.~.~ Inclosing chamber

DEFINITION

Classification: 159/12

(under subclass 7) Apparatus in which the traveling surface is enclosed in a chamber.