[Trade Journal] Publication: Electrical World New York, NY, United States |
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OUR ILLUSTRATED RECORD OF ELECTRICAL PATENTS. PATENTS DATED JULY 2, 1889. · · 406,041. Insulator for Electric Wires; James C. Gill, of Covington, Ky., Assignor to the Hemingray Glass Company, of same place. Application filed March 6, 1889. A glass electric wire insulator through which a portion of the line wire is cast, in combination with the main wires. See illustration. · ·
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