US PATENT SUBCLASS 315 / 153
.~.~ Selective energization of the load devices

Current as of: June, 1999
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315 /   HD   ELECTRIC LAMP AND DISCHARGE DEVICES: SYSTEMS

149  DF  WITH RADIANT ENERGY SENSITIVE CONTROL MEANS {8}
152  DF  .~ Plural load devices {1}
153.~.~ Selective energization of the load devices {1}
154  DF  .~.~.~> Selective electric switch controlled by the radiant energy responsive device

DEFINITION

Classification: 315/153

(under subclass 152) Systems wherein one or more of the load devices may be energized separately from the other load device in the system, the selection of the load device or devices to be energized being controlled by the radiant energy sensitive means.