US PATENT SUBCLASS 266 / 97
.~ By timer

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

96  DF  WITH PROGRAMMED, CYCLIC, OR TIME RESPONSIVE CONTROL MEANS {1}
97.~ By timer {1}
98  DF  .~.~> Having driven disk or drum

DEFINITION

Classification: 266/97

(under subclass 96) Device wherein the control means is provided with means for controlling the time at which an operation occurs or the length of time in which said operation is performed.