9 ELECTRICAL AND ELECTRONIC SUPERVISION, MEASURING, SWITCHING, TRANSMITTING, RECEIVING AND DISTRIBUTION CONTROLS USED IN INDUSTRIAL CONTROL OPERATIONS; ELECTRICAL AND ELECTRONIC SYSTEMS COMPRISING DETECTORS, SENSORS, CONTROLS, COMMUNICATION UNITS AND INFORMATION PROCESSING UNITS FOR USE IN THE SUPERVISION, CHECKING AND AUTOMATIC REMOTE CONTROL OF INDUSTRIAL OPERATIONS AND IN THE CALCULATION AND FURNISHING OF DATA AND STATISTICAL INFORMATION; PNEUMATIC CONTROLS, COMPRISING PNEUMATIC VALVES, CONTROL INDICATORS AND SWITCHES; PNEUMATIC SUPERVISION, MEASURING, CONTROL, SWITCHING, TRANSMITTING, RECEIVING AND DISTRIBUTING APPARATUS USED IN INDUSTRIAL CONTROL OPERATIONS