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Arithmomètre
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Aritmometre
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Istanbul Universitesi
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Istanbul University
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Louis Payen
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Mehmed Izzet
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Mehmet Izzet
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Thomas de Colmar
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Yildiz Palace
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Yildiz Sarayi
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aritmometer
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art
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bilimsel aletler
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hist
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mechanical calculators
mekanik hesaplayicilar
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scientific instruments
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