73802120
May 22, 1989
Sep 4, 1990
COMPUTERS; COMPUTER PERIPHERALS; PARTS THEREFOR; COMPUTER OPERATING PROGRAMS; COMPUTER UTILITY PROGRAMS; COMPUTER PROGRAMS FOR USE IN MONITORING, METERING AND CONTROL OF THE FLOW OF FLUIDS, GASES, ELECTRICAL POWER, AND TRAFFIC IN TRANSPORTATION SYSTEMS; AND INSTRUCTION MANUALS DISTRIBUTED THERWITH
Electrical and Scientific Apparatus