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Title: Section of a Comptometer by Felt & Tarrant showing mechanism [Go to resource]
Description: Section of a Comptometer by Felt & Tarrant showing mechanism, in glass case License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Subjects: model (calculating machine) Temporal: 1908-1909 Source: Science Museum Creator: Felt and Tarrant Manufacturing Company Identifier: 1909-200 Go to resource More Like this...
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