calculator.org the calculator home page

Rockwell 31R SLIDE RULE MEMORY

The Rockwell 31R SLIDE RULE MEMORY is an arithmetic calculator with 8 digits precision and algebraic logic. It has 10 functions, 24 keys and an LED (light-emitting diode) display, typical of calculators of this era. The power source is PP3 9V.

Facts at a glance:

Type Arithmetic
Functions 10
Keys 24
Precision 8
Logic Algebraic
Display type LED
Display size
Printer
Length 155 mm
Width 76 mm
Thickness 23 mm
Weight 132 g
Power Source PP3 9V
Country
Original price unknown
Est. current value unknown
Year introduced 1975
Year discontinued 1975

See other calculators manufactured by Rockwell.