US PATENT SUBCLASS 432 / 197
.~ Having particulate or liquid heat transfer medium in work chamber

Current as of: June, 1999
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432 /   HD   HEATING

120  DF  WORK CHAMBER HAVING HEATING MEANS {12}
197.~ Having particulate or liquid heat transfer medium in work chamber

DEFINITION

Classification: 432/197

(under subclass 120) Apparatus including a liquid or fluent heat transfer medium within the work chamber and forming a part of the apparatus.