US PATENT SUBCLASS 307 / 135
.~.~ Preliminary reduction in current or voltage of system

Current as of: June, 1999
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307 /   HD   ELECTRICAL TRANSMISSION OR INTERCONNECTION SYSTEMS

112  DF  SWITCHING SYSTEMS {5}
134  DF  .~ With operation facilitating feature {2}
135.~.~ Preliminary reduction in current or voltage of system

DEFINITION

Classification: 307/135

(under subclass 134) Subject matter having means to reduce the current or voltage of the circuit as a step, preliminary to the switching step.