9 DOSING AND WEIGHING EQUIPMENT FOR THE PREPARATION OF CONCRETE, NAMELY, DOSIMETERS, MOISTURE METERS, INSTRUMENTS FOR PROPORTIONING AND WEIGHING CONCRETE AND CONCRETE ADMIXTURE INGREDIENTS, NAMELY, SCALES AND BALANCES; CONTROL DEVICES AND DATA PROCESSING DEVICES AS WELL AS SYSTEMS COMPOSED THEREOF FOR USE IN THE PREPARATION OF CONCRETE, IN PARTICULAR FOR CONTROLLING THE CONCRETE CONDITION, FOR ADDING THE MIXING WATER, FOR MONITORING THE AGGREGATE STORAGES, FOR DETERMINING AND RECORDING MANUFACTURING RECIPES, THE QUANTITY PRODUCED AND THE QUANTITY DELIVERED, NAMELY, ELECTRICAL CONTROLLERS, DATA PROCESSORS, LIQUID FLOW CONTROLS, LIQUID LEVEL CONTROLS, ELECTRONIC WATER FLOW CONTROLS, ELECTRONIC SENSORS, ELECTRONIC CONTROL PANELS, ELECTRONIC MOTOR CONTROLS, SAFETY VALVES FOR AUTOMATIC FLOW SHUT-OFF, AND SAFETY VALVES FOR AUTOMATIC SYSTEM SHUT-OFF; DATA INPUT AND OUTPUT DEVICES FOR USE IN THE PREPARATION OF CONCRETE INCLUDING MATERIAL PLANNING, NAMELY, DATA PROCESSORS, DATA PROCESSING DEVICES AND SYSTEMS COMPOSED THEREOF FOR USE IN THE CONSTRUCTION INDUSTRY, IN PARTICULAR FOR CUSTOMER ACCOUNTING, FOR INVOICING, FOR STATISTICS, FOR PLANNING THE EMPLOYMENT OF VEHICLES, FOR DRAWING UP DELIVERY NOTES, FOR CONTROLLING PRODUCTION, NAMELY, DATA PROCESSORS