US PATENT SUBCLASS 320 / FOR 120
.~ Periodic or intermittent charging or discharging (320/21)

Current as of: June, 1999
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320 /   HD   ELECTRICITY: BATTERY OR CAPACITOR CHARGING OR DISCHARGING

FOR 101  DF  BATTERY CHARGING AND/OR DISCHARGING (320/2) {15}
FOR 120.~ Periodic or intermittent charging or discharging (320/21)

DEFINITION

Classification: 320/FOR.120

Foreign art collection in which means operate to charge or discharge a battery at successive intervals of time, said intervals being spaced by other intervals during which the battery current is substantially zero.