The Star Porcelain Co. and Jeffery-Dewitt Co. made spark plugs from steatite

[Trade Journal]

Publication: The Horseless Age

New York, NY, United States
vol. 37, no. 7, p. 280, col. 2

(We understand that steatite comes from Bavaria, Germany, and is not obtainable in this country at present. Porcelain insulators for spark plugs are made by the Jeffery-Dewitt Company, Detroit, Mich. And the Star Porcelain Co., Trenton, N. J. Wire for spark plug points can be obtained from H. Boker & Co., 101 Duane street, New York; Baker & Co., Newark, N. J., and Driver-Harris Wire Co., Harrison, N. J. - Ed.)


Keywords:Star Porcelain Company : Jeffery-Dewitt Company : Jeffery-Dewitt Insulator Company
Researcher notes: 
Supplemental information: 
Researcher:Elton Gish
Date completed:September 15, 2010 by: Elton Gish;