• 1959

Hardware Description

Model CM2-16 from the 1960s was the first Facit calculator to use the now-familiar ten-key numeric keypad in place of the 2-row "Dalton" keyboard. The keypad mechanism achieves a very light touch by eliminating (almost) all spring tension on the downstroke, and using the rotor escapement and return spring to provide the restoring force for the upstroke.