[Trade Journal]
Publication: Western Electrician
Chicago, IL, United States
vol. 40, no. 10, p. 224, col. 3
BUSINESS.
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The Porcelain Electrical Manufacturing Company of Trenton, N. J., is no longer making the "P. E. M. Co. knob," which is the two-piece porcelain insulator, formerly known as the. "W. E. split-knob.'' The R. Thomas & Sons Company, 39 Cortland Street, New York city, now has the exclusive right to make and market this insulator, and will give all orders prompt attention. The insulator will now be known as the "Thomas T. P. I. knob."
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