Diagnostic annunciators for use on industrial burners and boilers; computerized and non-computerized burner controls, computerized and non-computerized boiler controls, temperature controls, and programmable logic controllers for use on industrial boilers and burners; oxygen trim systems consisting of oxygen trim sensors, temperature and pressure controls and annunciators for use with combustion equipment, namely, industrial burners and parts therefor; industrial burner control systems sold a...

Diagnostic annunciators for use on industrial burners and boilers; computerized and non-computerized burner controls, computerized and non-computerized boiler controls, temperature controls, and programmable logic controllers for use on industrial boilers and burners; oxygen trim systems consisting of oxygen trim sensors, temperature and pressure controls and annunciators for use with combustion equipment, namely, industrial burners and parts therefor; industrial burner control systems sold a...

STEAM BOILERS, WATER HEATERS, [STILLS FOR PRODUCING DISTILLED WATER FROM IMPURE WATER, TANK CAR HEATERS, CONVERSION OIL BURNERS, OIL BURNING HEATERS FOR BITUMINOUS AND LIKE MATERIALS, AND PARTS THEREOF]