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Browsing results matching Calculators -- Technological innovations -- 19th century.

	Subject	Items
1.	Calculating-machines	0
2.	See Calculators	8
3.	Calculating-machines -- History.	1
4.	Calculating prodigies	0
5.	See Mental calculators	3
6.	Calculators	8
7.	See Also Arithmetic	30
8.	See Also Graphic calculators	2
9.	See Also TI-Nspire (Calculator)	1
10.	Calculators -- Great Britain -- History -- 19th century.	1
11.	Calculators -- History.	2
12.	Calculators -- Juvenile literature.	4
13.	Calculators, Mental	0
14.	See Mental calculators	3
15.	Calculators -- Problems, exercises, etc.	6
16.	Calculators -- Problems, exercises, etc. -- Juvenile literature.	2