Calculators
Casio
Casio SL-300Casio fx-7000GA
fx-7700GB
Casio fx-9750G
SL-300ER
Prinztronic
Prinztronic AssetPrinztronic SC1500M
Texas Instruments
Texas Instruments BA-35 SolarTexas Instruments TI-30X Scientific
Texas Instruments TI-30 STAT
Sharp
Elsi Mate EL-860EL-506H
Canon
Canon Palmtronic LC-81MImperial
Imperial Special CalculatorSystema
Systema LC2100Bowmar
Bowmar 901D / TENMX100