[Trade Journal]
Publication: Telephony
Chicago, IL, United States
vol. 62, no. 20, p. 639-640, col. 2,2
Exhibits at Indiana Convention.
The exhibits at the annual convention of the Indiana Independent Telephone Association, held this week at Indianapolis were interesting and well patronized. Among the manufacturers and dealers represented were the following:
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The Minerallac Electric Co., of Chicago, was represented by J. R. Calhoun, H. S. Sines, who showed the Unity insulator, Minerallac insulating compounds, etc.
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