U.S. federal trademark · Serial No. 71273576 · Reg. No. 0261359
GAS, OIL, [ OR COAL, ] HOT-AIR FURNACES FOR WARMING HOUSES, WHICH FURNACES OR HEATERS ARE EQUIPPED WITH INSTRUMENTALITIES FOR CONDITIONING, PURIFYING, AND CIRCULATING THE AIR, AND AIR COOLING OR DEHUMIDIFYING UNITS FOR USE THEREWITH
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