US PATENT SUBCLASS 218 / 104
.~.~.~.~ Including magnet or coil

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}
89  DF  .~ Interposed non-conductor {3}
91  DF  .~.~ Liquid {14}
103  DF  .~.~.~ Arcing chamber {3}
104.~.~.~.~ Including magnet or coil

DEFINITION

Classification: 218/104

Including magnet or coil:

(under subclass 103) Subject matter including a conductor wound up in a spiral form, or a piece of iron or steel that possesses the property of attracting certain substances as iron.