AKA: ELSI MATE EL-431, RULERCALC, SOLAR CELL CALCULATOR, AKA (Label): EL-431, Product number (P/N): EL431 (EL-431),
Keywords/Tags: EL431 (EL-431) | 431 | ELSI MATE, RULERCALC, SOLAR CELL CALCULATOR
Date of intro: ~1984, Origin: Japan (List),
Power: Solar,
Display: Type = Display (LCD) (List),
Number of keys: 24,
Classification: / Desktop with Display / Ruler / Tool,
Featuring: Procent, Square root,
Collector value: 7/10,
Courtesy of: CALCUSEUM (Serge DEVIDTS),
Internet: Link-1