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Subjects (1-5 of 5)
Mathematical instruments
1

-- See Also the narrower term Abacus


2

-- See Also the narrower term Calculators


Here are entered works on present-day calculators as well as on calculators and mechanical computers of pre-1945 vintage. Works on modern electronic computers first developed after 1945 are entered under Computers
3

-- See Also the narrower term Drawing instruments


4

-- See Also the narrower term Quipu


5

-- See Also the narrower term Slide-rule


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