US PATENT SUBCLASS 202 / 89
.~.~.~.~ Interchangeable

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

81  DF  APPARATUS {4}
82  DF  .~ Systems {6}
85  DF  .~.~ Thermolytic and autothermic {2}
88  DF  .~.~.~ Kiln and directly heated chamber {2}
89.~.~.~.~ Interchangeable

DEFINITION

Classification: 202/89

The kiln and chamber are identical in construction and may interchange functions.