AKA: ESR-87, Product number (P/N): ESR87 (ESR-97),
Keywords/Tags: ESR87 (ESR-97)
Date of intro: ~1979, Origin: Taiwan (List), Dimensions: 126x70x8mm, Weight: 70g,
Display: Type = Display (LCD yellow) (List), Digits = 8+1+(2+1),
Number of keys: 40, #Key-Black: 11, #Key-Blue: 10, #Key-Red: 2, #Key-White: 17,
Miscellaneous switch: [(Blank)-ON DEG-RAD-GRAD],
Classification: / Pocket,
Featuring: Scientific functions, Procent, Square root, PI,
Collector value: 7.5/10,
Internet: Link-1: LE RAYON DES CALCULATRICES