74161347
Apr 25, 1991
Jul 14, 1992
pay telephones; card readers for magnetic, optic and electronic cards; computers; data processing units; data communication units; computer monitors, interfaces, and printers; multiplexers; modems; remote management systems for pay telephones comprising an operator's unit, operator's interface, report printer and modem connectable through a telephone network with pay telephones; pre-recorded data carriers; namely, tapes and discs, for use with remote management systems for pay telephones; and computer software for use with remote management systems for pay telephones
Electrical and Scientific Apparatus