74456639
Nov 10, 1993
Nov 28, 1995
telephonic and telecommunications equipment, namely analog and digital switches, common and message channel units, data units, 1A through 5ESS switches, trunk cards, urban cards, repeaters, signaling and multi-frequency transmission units, processors and modems, plug-ins, namely electronic components used in a telephone central office that switch telephone calls, as well as replacement parts for each of the above
Electrical and Scientific Apparatus