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Title: Early Sundstrand calculating machine made by Underwood No.93 [Go to resource]
Description: Early Sundstrand calculating machine made by Underwood No.933584/8150 License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Subjects: adding)
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calculating machine (printingTemporal: 1955-1965 Source: Science Museum Creator: Underwood Corporation Identifier: 1965-469 Go to resource More Like this...
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