71438828
Dec 14, 1940
Jun 17, 1941
Measuring and Controlling Systems and Apparatus for Temperature Including, Air Pilot Valve Recorder-Controllers, Pyrometer Air Control Apparatus, Recording Thermometers, Resistance Thermometers, Temperature Indicators, Temperature Recorders, Temperature Controllers, Temperature Recorder-Controllers, and Charts and Accessories Therefor Such as for Example, Thermometer Wells and Temperature Elements
Fancy Goods