US PATENT SUBCLASS 159 / 41
.~.~ With dampers

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

32  DF  OPEN PANS {6}
38  DF  .~ Furnace heated {3}
41.~.~ With dampers

DEFINITION

Classification: 159/41

(under subclass 38) Open pans combined with furnaces and

means to regulate or positively control the direction of flow of the hot gases about the pan.

SEE OR SEARCH CLASS

126, Stoves and Furnaces,

285+, for dampers generally.