[Trade Journal]
Publication: Western Electrician
Chicago, IL, United States
vol. 34, no. 21, p. 429, col. 1-2
ILLUSTRATED ELECTRICAL PATENT RECORD.
Issued (United States Patent Office) May 10, 1904.
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759,276. Insulator for Telegraph Wires. Clayton Hobert, Philadelphia, Pa. Application filed April 10, 1903.
A lower portion of the insulator screws on to the insulator pin and has upon the top a groove for the reception of the wire. A cap screws on to the lower portion and holds the wire in place. (See cut.)
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| No. 759,276. — Insulator. |
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