Knowles catalogs Imperial insulators

[Trade Journal]

Publication: American Electrician

New York, NY, United States
vol. 9, no. 11, p. 460, col. 3

Porcelain Insulators. C. J. Knowles, 7 Arch Street, Boston, in a lately issued pamphlet describes and illustrates the different types of "Imperial" porcelain insulators. Considerable information is given concerning the properties of porcelain that make that material so superior for insulating purposes.

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Keywords:Imperial Porcelain Works : C. S. Knowles
Researcher notes: 
Supplemental information: 
Researcher:Elton Gish
Date completed:August 26, 2012 by: Elton Gish;