[Trade Journal]
Publication: Electrical World
New York, NY, United States
vol. 15, no. 13, p. 232, col. 2-3
WESTERN NOTES.
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Shay, Stephens & Co., Chicago, are supplying the trade with a glass insulator of special form, designed to replace the porcelain insulator ordinarily used in certain classes of work, especially where there is more or less dampness.
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