U.S. federal trademark · Serial No. 73521460
BIOLOGICAL WASTE PURIFICATION SYSTEMS COMPRISING-HEAT EXCHANGERS, WATER HEATERS, BOILERS, HOT WATER STORAGE TANKS, GAS TANKS, GAS STORAGE UNITS, GAS COOLERS, PRTS, HOT WATER STORAGE TANKS, WATER HEATE PUMPS, ELECTRIC GENERATORS AND CONTROLS, THEREFOR
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