73105234
Nov 3, 1976
Feb 20, 1979
ELECTRONIC COMPUTERS; COMPUTER PROGRAMS RECORDED ON TAPES, CARDS AND DISKS; COMPUTER PERIPHERAL EQUIPMENT COMPRISING DISK STORAGE UNITS, PRINTERS AND OPERATOR CONSOLES; AND ASSOCIATED APPARATUS FOR DATA TRANSMISSION AND SWITCHING-NAMELY, CONCENTRATORS, MULTIPLEXERS AND MODEMS
Electrical and Scientific Apparatus