The log log duplex decitrig slide rule, no. 4081
Subtitle: a manual
By: by Lyman M. Kells, Willis F. Kern, and James R. Bland
Contributors: Kern, Willis F. (Willis Frederick), 1903- joint author; Bland, James R., joint author; Keuffel & Esser Co; Kern, Willis F. (Willis Frederick), 1903- author; Bland, James R., author
Publisher: Keuffel & Esser
Published: 1955
Place of publication: New York
Language: eng
Number of pages: 126
Subjects: Slide-rule
Notes: Answers: p. 116-124.

On cover: K & E slide rule manual.

Includes index.