US PATENT SUBCLASS 266 / 108
.~.~ In a muffle furnace

Current as of: June, 1999
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266 /   HD   METALLURGICAL APPARATUS

102  DF  MEANS TREATING A CONTINUUM OF WORK {1}
103  DF  .~ With heating means {8}
108.~.~ In a muffle furnace

DEFINITION

Classification: 266/108

(under subclass 103) Device wherein the object is heated by passing it through a heated receptacle having means therein to maintain the object out of direct contact with any source of heat or gases evolved thereby.