11 OIL AND GAS IGNITERS AND PARTS THEREOF IN THE NATURE OF IGNITION TRANSFORMERS, CONDUIT ASSEMBLIES, SPARK PLUGS, FLAME RODS, AND INTERNAL COMPONENTS, NAMELY, EXTENSION RODS, ATOMIZER TIPS, NOZZLES AND GAS SPUDS; SINGLE AND DUPLEX OIL AND GAS BLOWER ASSEMBLIES COMPRISED OF INDUSTRIAL FANS, MOTOR STARTERS, BUTTERFLY AND CHECK VALVES, PRESSURE SWITCHES, AND STANDARD WIRING AND PIPING; OIL AND GAS VALVE TRAINS IN THE NATURE OF REGULATING VALVES, AND CHECK VALVES; ELECTRICAL CONTROL IGNITION SYSTEMS IN THE NATURE OF CONTROL CABINETS, COMPRISED OF ENCLOSURES, PILOT DEVICES, TERMINAL BLOCKS, LOGIC CONTROLLERS, RELAYS, OIL AND/OR GAS IGNITERS AND VALVE RACKS FOR USE WITH INDUSTRIAL BOILERS AND BURNERS