US PATENT SUBCLASS 202 / 137
.~.~.~.~.~ With heating chamber

Current as of: June, 1999
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202 /   HD   DISTILLATION: APPARATUS

81  DF  APPARATUS {4}
82  DF  .~ Systems {6}
96  DF  .~.~ Thermolytic {5}
105  DF  .~.~.~ Retort {14}
133  DF  .~.~.~.~ Horizontal {6}
137.~.~.~.~.~ With heating chamber

DEFINITION

Classification: 202/137

The retorts, either singly or in groups, are inclosed in a chamber in which combustion takes place to heat them.

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