18
/
en
AIzaSyCYaC8UkdPkQKLFUmpasLV5eC3M802CrcA
104736
9500
2

oct 1, 1961 - Oct 1961 - The Bell Punch/Sumlock Comptometer ANITA is released, a 30+ pound calculator using vacuum tubes.

Added to timeline:

4 Oct 2017
0
0
173
Calculator history

Date:

oct 1, 1961
Now
~ 57 years ago
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