US PATENT SUBCLASS 159 / 37
.~ Steam heated

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

32  DF  OPEN PANS {6}
37.~ Steam heated

DEFINITION

Classification: 159/37

(under subclass 32) Open pans provided with heating elements adapted to be connected with a source of steam.

SEE OR SEARCH THIS CLASS, SUBCLASS:

26.1+, for closed evaporating chambers with heated tubes.