73346602
Jan 21, 1982
Jul 5, 1983
Data Handling Systems-Namely, Apparatus Designed to Operate as Multiplexers, Concentrators, and Data Packet Assembler/Disassembler Units, Data Routers, Data Network Simulators, Data Network Exerciser/Tester and Data Monitoring Terminals, and Statistical Data Communication Multiplexers
Electrical and Scientific Apparatus