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"The Log Log Duplex Trig"

"Slide Rule"

"No. 4080"

by: Lyman Kells, Willis Kern, and James Bland

Copyright 1962

This is a short preview of the manual for identification purposes. Complete scans will be provided when time is available. If someone has a particular need to view the entire version of this manual, please email me and I will put it first in my list to finish.

clarkmccoy2@comcast.net

This manual has several remarkable fetures.

The inside cover has a purchase date.

The full rule illustrations in the front are of an earlier N4080-3

Between pages 2 and 3 a seven page addendum on the DI scale is inserted.

DI Scale Addendum inserted between pages 2 and 3

Continuation of manual

This manual is from the collection of Clark McCoy
The scans of this manual were provided by Clark McCoy
These web pages were produced by Clark McCoy