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Trig table round slide Rule
Object/Artifact
-
Museum Of American Heritage
Name/Title
Trig table round slide Rule
Entry/Object ID
1000.223.1
Description
Rule, slide, round, trig table
Made/Created
Notes
where made: USA
Material
Metal
Color
Tan
General Notes
Note
Slide rule copyrighted 1919, pat 1/17/1922, conversion table copyrighted 1931, in brown leather like case.