US PATENT SUBCLASS 315 / 217
.~.~ Periodic switch selectively connectable to plural load device circuits

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315 /   HD   ELECTRIC LAMP AND DISCHARGE DEVICES: SYSTEMS

209 R  DF  PERIODIC SWITCH IN THE SUPPLY CIRCUIT {11}
210  DF  .~ Plural load device systems {2}
217.~.~ Periodic switch selectively connectable to plural load device circuits

DEFINITION

Classification: 315/217

(under subclass 210) Systems wherein the periodic switch is connected in the circuit so that it may be selectively connected in the supply circuit of either of two or more of the load devices.