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Manufacturers Index - Economic Motor Co.
History
Last Modified: Feb 18 2014 8:37PM by joelr4
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Manufactured Non-Compression Gas Engines following the patents of George M. & I. Newton Hopkins patents. ca 1883-1888

Information Sources

  • American Gasoline Engines Since 1872 by C. H. Wendel, Volume #1, 1983 page 145
  • The Complete Guide to Stationary Gas Engines by Mark Meincke, 1996 page 114