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Year: 1976? ..
Power: 4 x D0.55 NiCd accumulators or adapter
Display: Red LED
Price: 240 roubles (1977), 95 roubles (1981), 65 roubles (1982)
Features: RPN, scientific, error: 9.9999999 + 10 = 120, made in German Democratic Republic and USSR
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