U.S. federal trademark · Serial No. 71659018 · Reg. No. 0607985
RAILWAY CAR AUTOMATICALLY CONTROLLED STEAM HEATING SYSTEMS OF A TYPE IN WHICH THE DELIVERY OF STEAM TO THE SYSTEM IS CONTROLLED BY A SINGLE REGULATOR OPERATIVELY RESPONSIVE TO THE TEMPERATURE AT AN OUTLET OF THE SYSTEM AND ALSO OPERATIVELY RESPONSIVE TO THE TEMPERATURE WITHIN THE CAR
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