US PATENT SUBCLASS 307 / 87
.~.~.~ Attainment of voltage, frequency or phase relationship

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

43  DF  PLURAL SUPPLY CIRCUITS OR SOURCES {14}
85  DF  .~ Connecting or disconnecting {1}
86  DF  .~.~ Condition responsive {1}
87.~.~.~ Attainment of voltage, frequency or phase relationship

DEFINITION

Classification: 307/87

(under subclass 86) Subject matter in which the condition is the obtainment of a certain voltage, frequency or phase relationship.