U.S. federal trademark · Serial No. 71447501 · Reg. No. 0396924
Wet Process Porcelain High Tension Electric Insulators, Having Ratings from a Minimum of 4 Kilovolts to Maximum Possible Voltages, Wet Flashover from a Minimum of 12 Kilovolts to the Maximum Possible Wet Flashover Voltages, and Dry Flashover from a Minimum of 23 Kilovolts to the Maximum Possible Dry Flashover Voltages
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