73309928
May 11, 1981
Jun 7, 1983
Active Trademark
Controls for Burners and Boilers; Smoke Density/Opacity Monitors; Flame Scanner and Detection Assemblies; Fault Annunciator and Fault Diagnostic Apparatus Projection Type Fault Indicators; Logic Circuit Cards for Controls and Indicators; Electrically Operated Ball and Cock Valves; Air and/or Gas Pressure Actuated Switches; Electric Switches; Relays; Test Units; Voltage/Ampere Meters; Transformers; Electric Bells; Electric Warning Horns; Lenses; Lens Caps, Mounts and Retainers; Infrared Detectors; Ultraviolet Detectors and Flame and Programming Controls for Industrial Fuel Burners
Electrical and Scientific Apparatus