US PATENT SUBCLASS 307 / 125
.~.~ Electrical

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

112  DF  SWITCHING SYSTEMS {5}
116  DF  .~ Condition responsive {4}
125.~.~ Electrical {6}
126  DF  .~.~.~> Power or energy
127  DF  .~.~.~> Polarity, phase sequence or reverse flow
128  DF  .~.~.~> AC or DC discriminating
129  DF  .~.~.~> Frequency
130  DF  .~.~.~> Voltage
131  DF  .~.~.~> Current

DEFINITION

Classification: 307/125

(under subclass 116) Subject matter in which the condition to which the system is automatically responsive is an electrical condition.

SEE OR SEARCH CLASS

340, Communications: Electrical,

635+, and 657+ for this subject matter in combination with an alarm or indicator to indicate the condition.

361, Electricity: Electrical Systems and Devices,

1+, for safety and protective systems which are automatically responsive to a dangerous electrical condition, such as circuit breaker systems.