73530840
Apr 5, 1985
May 27, 1986
ELECTRONIC TELECOMMUNICATIONS APPARATUS AND INSTRUMENTS - NAMELY, TRUNK LINE CARRIER APPARATUS, ADD MAIN LINE (AML) STATION CARRIERS, LINE CONCENTRATORS, VOLTAGE SURGE PROTECTORS, AC/DC CONVERTORS, CROSS-CONNECTING BOXES, LOADING COILS, PRIVATE AUTOMOTIVE BRANCH EXCHANGES (PABX), MICROWAVE TRANSMITTING AND RECEIVING APPARATUS, TELEPHONE SETS, TELEPRINTERS; DIGITAL KEY TELEPHONE SYSTEMS CONSISTING OF KEY SYSTEM UNITS (KSU), STATION SETS (S.S.), DUAL LINE INTERFACES (DLI), QUAD STATION INTERFACES (QSI) AND MEMORY BOARDS; TELEPHONE SWITCHING UNITS, COMPUTERIZED BILLING MACHINES, FACSIMILE MACHINES, AND SATELLITE RECEIVERS; COMPUTER PERIPHERALS AND ACCESSORIES, NAMELY CHINESE INTELLIGENT TERMINALS AND HARD DISK DRIVERS
Electrical and Scientific Apparatus