U.S. federal trademark · Serial No. 73166863 · Reg. No. 1118143
A FLAME SCANNER AND COMBUSTION SAFETY CONTROL DESIGNED TO MONITOR GASEOUS AND/OR LIQUID FUEL FLAMES IN SEMI-AUTOMAAICALLY CONTROLLED BOILERS AND FURNACES AND TO DE-ENERGIZE AUTOMATIC FUEL SHUT-OFF VALVES UPON LOSS OF FLAME DETECTION SIGNAL
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