US PATENT SUBCLASS 202 / 212
.~.~.~.~ Arched

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

81  DF  APPARATUS {4}
*  DD  .~ Types {3}
*  DD  .~.~ Autothermic {5}
211  DF  .~.~.~ Kiln {3}
212.~.~.~.~ Arched

DEFINITION

Classification: 202/212

The kiln has an arched top and greater length than breadth, i.e., is noncircular in horizontal section.