[Trade Journal]
Publication: Electrical World
New York, NY, United States
vol. 14, no. 9, p. 156, col. 2
WESTERN NOTES.
BRANCH OFFICE OF THE ELECTRICAL WORLD
39 Mallers Building, Chicago, Aug. 24, 1889.
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The Knapp Electrical Works, Chicago, are building several hundred instruments for the Gray National Telautograph Company.
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F. DE L.
