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Title: Comptometer by Felt and Tarrant Mfg. Co. Chicago, c. 1915 [Go to resource]
Description: Comptometer by Felt and Tarrant Mfg. Co. Chicago, c. 1915 License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Subjects: adding)
calculating machine (full-keyboardTemporal: 1915-1920 Source: Science Museum Creator: Felt and Tarrant Manufacturing Company Identifier: http://collectionsonline.nmsi.ac.uk/grab... Go to resource More Like this...
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