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Title: Cutaway demonstration model of Diehl calculator, full keyboa [Go to resource]
Description: Cutaway demonstration model of Diehl calculator, full keyboard-type stepped-cylinder machine License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Subjects: models (calculating machines) Source: Science Museum Creator: Diehl, Heinrich GmbH Identifier: 1990-686 Go to resource More Like this...
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