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 "VULCAN"; JAN. 8, 1957, AS TO SHEILD DESIGN. 1926 AS TO "VULCAN"; JAN. 8, 1957, AS TO SHEILD DESIGN. THE SHADING PORTIONS DO NOT REPRESENT COLOR.