1 matching record(s)
file U (Stack)Anonymous
Instructions for the Calculating Slide Rule
Made in five sizes 5" 8" 10" 15" 20" and a new 5" pocket rule 1/4" thick with comparative scale inches & centimeter on back. n.p., n.d.
[Unknown]
[n.d.]
1 matching record(s)
file U (Stack)Anonymous
Instructions for the Calculating Slide Rule
Made in five sizes 5" 8" 10" 15" 20" and a new 5" pocket rule 1/4" thick with comparative scale inches & centimeter on back. n.p., n.d.
[Unknown]
[n.d.]