Mathematics / Data processing.- Hollerith counting machine; built in1890 by the engineer Hermann Hollerith(1860-1929); for processing data on punched cards: counting and tabulating machine by Hollerith with pantograph Sensing Unit and sorter.Reproduction built by the Forschungsinstitut f黵 diskrete Mathematik in Bonn.

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TOP17615096

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達志影像

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RM

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須由TPG 完整授權

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