US PATENT SUBCLASS 219 / 649
.~.~ Materials
Current as of:
June, 1999
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219 /
HD
ELECTRIC HEATING
600
DF
INDUCTIVE HEATING
{7}
647
DF
.~ With workpiece support {7}
649
.~.~ Materials
DEFINITION
Classification: 219/649
Materials:
(under subclass 647) Subject matter wherein the workpiece support is of a particular substance.
SEE OR SEARCH CLASS
198, Conveyors: Power-Driven,
957, for conveyor material.