West Virginia Industries; Jeffery-Dewitt products photograph includes helical insulator

[Trade Journal]

Publication: National Geographic

Washington, DC, United States
vol. 78, no. 2, p. 141-184, col. 1-2

[Title only]

Keywords:	Jeffery-Dewitt Insulator Company
Researcher notes:
Supplemental information:
Researcher:	Bob Stahr
Date completed: