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Facit 1114 Desktop Calculator
Eight digit, fixed (2 or 4 digits behind the decimal point) or floating
point, four-function AC-powered desktop calculator with constant. Seven-segment
vacuum-fluorescent display using nine (one for negative indication)
NEC/Hitachi DG-10T tubes. Hitachi HD3276
calculator-on-a-chip, with Toshiba digit driver chips. Introduced in late
1972.