US PATENT SUBCLASS 218 / 142
.~.~.~ Located inside housing

Current as of: June, 1999
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218 /   HD   HIGH-VOLTAGE SWITCHES WITH ARC PREVENTING OR EXTINGUISHING DEVICES

1  DF  ARC PREVENTING OR EXTINGUISHING DEVICES {14}
118  DF  .~ Vacuum {5}
141  DF  .~.~ With magnetic coil {1}
142.~.~.~ Located inside housing

DEFINITION

Classification: 218/142

Located inside housing:

(under subclass 141) Subject matter wherein the magnetic coil is placed within the vacuum switch housing