US PATENT SUBCLASS 218 / 3
.~.~ Hybrid-type

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}
2  DF  .~ Multiple break {5}
3.~.~ Hybrid-type

DEFINITION

Classification: 218/3

Hybrid-type:

(under subclass 2) Subject matter wherein the multiple break consists of a combination of two or more different types of switches such as a vacuum switch and a gas switch.

SEE OR SEARCH THIS CLASS, SUBCLASS:

70, for sealed chamber of air-current blowout type circuit breaker.