US PATENT SUBCLASS 266 / 285
.~ With means allowing for expansion

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

280  DF  LININGS {6}
285.~ With means allowing for expansion

DEFINITION

Classification: 266/285

(under subclass 280) Device including means to allow for the swelling of the lining or lining elements due to temperature change.