US PATENT SUBCLASS 700 / 237
.~.~.~.~ Authorization (e.g., password, time usage limit, personal identification number (PIN))


Current as of: June, 1999
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700 /   HD   DATA PROCESSING: GENERIC CONTROL SYSTEMS OR SPECIFIC APPLICATIONS

90  DD  SPECIFIC APPLICATION, APPARATUS OR PROCESS {16}
213  DD  .~ Article handling {5}
231  DD  .~.~ Dispensing or vending {6}
232  DD  .~.~.~ Operator or payment initiated {6}
237.~.~.~.~ Authorization (e.g., password, time usage limit, personal identification number (PIN))