US PATENT SUBCLASS 202 / 87
.~.~.~.~ Retort heated by combustion
Current as of:
June, 1999
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202 /
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DISTILLATION: APPARATUS
81
DF
APPARATUS
{4}
82
DF
.~ Systems {6}
85
DF
.~.~ Thermolytic and autothermic {2}
86
DF
.~.~.~ Retort and kiln {1}
87
.~.~.~.~ Retort heated by combustion
DEFINITION
Classification: 202/87
The retort is heated by combustion of the gases from the kiln, which latter may be a producer.
SEE OR SEARCH CLASS
48, Gas: Heating and Illuminating,
76, 77 and 78, and indented subclasses.