34 HEATING, COOLING, AND AIR CONDITIONING EQUIPMENT INCLUDING FINNEDTUBE HEAT TRANSFER ELEMENTS AND ENCLOSURES THEREFOR; HEATING AND VENTILATING UNITS AND PARTS THEREOF; AND BASEBOARD DIFFUSERS FOR FORCED AIR HEATING AND COOLING SYSTEMS
1926 AS TO THE WORD "VULCAN" 1926 AS TO THE WORD "VULCAN" AS TO "VULCAN"