U.S. federal trademark · Serial No. 71537820 · Reg. No. 0553239
INSTRUCTING MECHANICS AND REPAIR MEN IN METHODS OF OVERHAULING AND REPAIRING INTERNAL COMBUSTION ENGINES, PARTICULARLY TO OBTAIN PROPER OPERATION OF THE PISTONS WITHIN THE CYLINDERS THEREOF, AND IN THE SELECTION AND INSTALLATION OF PARTS FOR SAID ENGINES
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