U.S. federal trademark · Serial No. 71637663 · Reg. No. 0587579
CORROSION RESISTANT PLASTIC SHEET MATERIAL USEFUL, FOR EXAMPLE, IN INSULATING BURIED PIPES FROM THE CORROSIVE EFFECTS OF FLUIDS, SOIL CHEMICALS, OILS AND FATS, STRAY GROUND CURRENTS, SOIL BACTERIA, FUNGI, ETC
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