US PATENT SUBCLASS 218 / 155
.~ Housing structure

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}
155.~ Housing structure {1}
156  DF  .~.~> Arcing chamber {2}

DEFINITION

Classification: 218/155

Housing structure:

(under subclass 1) Subject matter including structural details of an envelope or casing used for the arc preventing or extinguishing devices.

SEE OR SEARCH THIS CLASS, SUBCLASS:

97+, for details of liquid circuit interrupter housing.

134+, for details of single-phase vacuum circuit interrupter housing.

139, for details of vacuum circuit interrupter housing.