73460644
Jan 13, 1984
Jan 1, 1985
Central Office Telephone Equipment-Namely, Power Units, Relay Racks, Switch Banks, Terminal Blocks, Circuitry, Selectors, Trunk Lines, Switching Units, Signaling Circuits, Connectors, Automatic Message Accounting Units, Digital Recorded Announcers, Custom Calling Units, Receivers, and Parts Thereof
Electrical and Scientific Apparatus