AKA: CompuVoice, AKA (Label): ELECTRONIC CALCULATOR, MODEL JE-721U, Product number (P/N): JE721U (JE-721U),
Keywords/Tags: JE721U (JE-721U) | CompuVoice | 721U
Date of intro: ~1983, Origin: Japan (List), Dimensions: 145x75x30mm, Weight: 175g,
Power: 4.5V: (AA x3),
Display: Type = Display (LCD) (List),
Number of keys: 31, #Key-Black: 8, #Key-Grey: 22, #Key-White: 1,
Miscellaneous switch: [MODE_LOCK-COMP.TIMER STOP WATCH-SET],
Classification: / Pocket / Speech / Time,
Featuring: Procent,
Known Serial-numbers: 25300031 | 28301265 | 29302930 (List of all S/Ns from PANASONIC)
Collector value: 8/10,
Courtesy of: CALCUSEUM (Serge DEVIDTS),