US PATENT SUBCLASS 320 / FOR 152
.~.~ Unidirectionally conductive devices in battery circuit (320/53)

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 148  DF  .~ Battery circuit control (320/49) {4}
FOR 152.~.~ Unidirectionally conductive devices in battery circuit (320/53)

DEFINITION

Classification: 320/FOR.152

Foreign art collection in which a unidirectionally conductive means is connected in series with the charging or the discharging circuit, said conductive means offering appreciably more impedance to the flow of current therethrough in one direction than in the other.