73541768
Jun 7, 1985
Apr 23, 1991
TELEPHONE SETS, FACSIMILE TRANSMITTERS AND RECEIVERS; TELETYPE TRANSMITTERS AND RECEIVERS; WORD PROCESSORS; COMPUTERS; PERIPHERALS FOR COMPUTERS, NAMELY, TERMINALS, TELEPHONE AND VIDEO EXCHANGERS AND ELECTRIC CABLES; RADIO TRANSMITTERS AND RECEIVERS; AND TIMERS FOR TELEPHONE CALLS, COUNTERS FOR TELEPHONE CALLS, TRAFFIC COUNTERS FOR TELEPHONE CALLS, ERROR RATE COUNTERS FOR TRANSMISSION LINES, MEASURING APPARATUS FOR TRANSMISSION CHARACTERISTICS, LINK ANALYZERS, OPTICAL PULSE COUNTERS AND OPTICAL POWER METERS
Electrical and Scientific Apparatus[ PAPER FOR USE WITH BUSINESS MACHINES; AND ] MAGAZINES, CATALOGS AND LEAFLETS RELATING TO THE FIELD OF ELECTRICAL COMMUNICATIONS
Paper Goods and Printed Matter