US PATENT SUBCLASS 219 / 86.8
.~.~.~.~ Having interchangeable welding electrodes

Current as of: June, 1999
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219 /   HD   ELECTRIC HEATING

50  DF  METAL HEATING (E.G., RESISTANCE HEATING) {19}
78.01  DF  .~ For bonding with pressure (e.g., resistance welding) {16}
86.1  DF  .~.~ By spot bonding {12}
86.25  DF  .~.~.~ With significant electrode support {4}
86.8.~.~.~.~ Having interchangeable welding electrodes

DEFINITION

Classification: 219/86.8

Having interchangeable welding electrodes:

(under subclass 86.25) Subject matter having means for allowing plural electrodes to be used in place of each other.