73257877
Apr 14, 1980
May 18, 1982
Temperature and Heat Flow Indication, Measurement, Monitoring and Control Systems-Namely, Fiber, Wire, Roll Surface, Fabric and Moving Surface Temperature Indicators and Controllers; Heat Flow Sensors, Pyrometers; Process Controllers, and Process Conditions Graphic Displayers in the Nature of Bar Graph Displays of Such Conditions
Electrical and Scientific Apparatus