Model: TI-1775Battery: solarAdapter: Year: 1988Chip: Info:
Model: TI-1775+Battery: LR44Adapter: Year: 1997Chip: Info: made in Thailandia
Model: TI-1780 cardBattery: solarAdapter: Year: 1983Chip: Info: LCD 1980 - 1984
Model: TI-1784 cardBattery: solarAdapter: Year: 1985Chip: Info: LCD 1985 - 1990 Made in Taiwan
Model: TI-1785 cardBattery: solarAdapter: Year: 1985Chip: Info: LCD 1985 - 1990
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