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Title: Six register National Class 3000 automatic bookkeeping calcu [Go to resource]
Description: Six register National Class 3000 automatic bookkeeping calculating machine with typewriter keyboard License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Subjects: adding)
calculating machine (printing
full-keyboardTemporal: 1945-1955 Source: Science Museum Creator: National Cash Register Company Limited Identifier: 1971-269 Go to resource More Like this...
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