US PATENT SUBCLASS 373 / 129
.~.~.~ Base
Current as of:
June, 1999
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373 /
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INDUSTRIAL ELECTRIC HEATING FURNACES
109
DF
RESISTANCE FURNACE DEVICE
{7}
117
DF
.~ With heating element detail {7}
128
DF
.~.~ Mounting {2}
129
.~.~.~ Base
DEFINITION
Classification: 373/129
Base:
(under subclass 128) Subject matter wherein the heating element is attached to the base of the furnace.