who invented the adding machine?

0 ⤊

http://inventors.about.com/library/inventors/blcalculator.htm

2006-08-15 00:28:19 · answer #1 · answered by xenomorphic 4 · 0⤊ 0⤋

in 1897, Sir Alexander Addingmach invented the adding machine.

2006-08-15 00:27:55 · answer #2 · answered by HOTTürk 4 · 0⤊ 0⤋

the chinese people did it. the first primitive type of adding machine is called the abacus

2006-08-15 00:30:09 · answer #3 · answered by blue_raven 2 · 0⤊ 1⤋