Keuffel and Esser’s “‘Duplex’ Slide Rule” Advertisement

1893

This advertisement for a Cox model duplex slide rule explained the new features of the rule, described how it worked, and noted how it differed from the Mannheim style rule.

Advertisement for Keuffel and Esser’s “‘Duplex’ Slide Rule,” Scientific American, vol. LXIX, no. 7, (August 12, 1893), p. 101. This advertisement for a Cox model duplex slide rule explained the new features of the rule, described how it worked, and noted how it differed from the Mannheim style rule.

Object Source & Copyright

  • Repository Hoboken Historical Museum
  • Date 1893
  • Copyright Public Domain
  • Disclaimer Courtesy of the Hoboken Historical Museum

Citation Information

The following information is provided for citations.

  • Title Keuffel and Esser’s “‘Duplex’ Slide Rule” Advertisement
  • Keywords Advertisement, Keuffel & Esser Co., Duplex, Slide, Rule, Scientific American, Cox, Model, William, Mannheim, Wilhelm
  • Website Name Immigrant Entrepreneurship
  • URL
  • Access Date June 2, 2023
  • Publisher German Historical Institute
  • Original Published Date
  • Date of Last Update August 9, 2018