US PATENT SUBCLASS 373 / 91
.~.~ Sectional

Current as of: June, 1999
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373 /   HD   INDUSTRIAL ELECTRIC HEATING FURNACES

60  DF  ARC FURNACE DEVICE {9}
88  DF  .~ Electrode {4}
91.~.~ Sectional {1}
92  DF  .~.~.~> With means to join sections

DEFINITION

Classification: 373/91

Sectional:

(under subclass 88) Subject matter including electrode segments joined together to form a unitary electrode.

(1) Note. Generally the sections are joined end-to-end utilizing screw and socket, or nipple and socket connection techniques.