How to Use a Slide Rule 1948 Eugene Dietzgen Company [Pamphlet] [Jan 01, 1948...
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Vintage 1948 booklet titled "How to Use a Slide Rule" published by the Eugene Dietzgen Company, manufacturers of drafting and surveying equipment. Booklet contains 18 pages. Topics include brief elementary instructions on how to use a slide rule; multiplication; decimal point; division; problems involving both multiplication and division; square and square roots; proportion; trigonometry and much more. Booklet is well illustrated with black and white illustrations.