72287417
Dec 22, 1967
Sep 30, 1969
ELECTRONIC SUPERVISORY CONTROL SYSTEMS COMPRISING [ DIRECT ] DIGITAL * AND ANALOG INPUT/OUTPUT DEVICES, [ TRANSMITTERS, SELECTORS FOR OUTGOING INFORMATION, DIRECT DIGITAL RECEIVERS AND READERS FOR INCOMING INFORMATION, ] SUCH SYSTEMS BEING USED IN ELECTRIC POWER [ GENERATING AND ] * GENERATION, * DISTRIBUTION, * AND TRANSMISSION * [ GAS AND PETROLEUM PIPELINES AND OIL FIELD PRODUCTION ]
Fancy Goods