9 Scanners for Electronically Determining the Characteristics of Sheet Materials in the Form of Paper, Rubber, Plastics, Metals and Textiles, Digital Sensors for the Control of Production of Paper, Rubber, Plastics, Metals, Textiles, Tobacco, Pulp and Energy-Namely, Digital Basis Weight Sensors, Digital Opacity Sensors, Digital Ash Sensors, Digital Moisture Sensors, Digital Caliper Sensors, Digital Air Gap Temperature Sensors, Digital Hardness Sensors, Digital Density Sensors, Digital Chlorination Sensors and Digital Flue Gas Sensors, Process Control Stations for Processing Signals from Digital Sensors, Digital Video Display Monitors, Display Center, Cabinets for Housing Digital Video Display Monitors, Digital Remote Control Center and Data Interface Units for Remotely Accessing Digital Computers, Digital Intelligent Operation Center Units for Processing, Computing and Controlling Signals from Digital Sensors, Digital Intelligent Printer/Plotters, Digital Computer Control Centers, Strip Chart Recorders, High Speed Analog to Digital Converter Multiplexers All Being for the Control or Production of Paper, Rubber, Plastics, Metals, Textiles, Tobacco, Pulp and Energy