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Title: Midget circular slide rule by Dietzgen with instruction leaf [Go to resource]
Description: Midget circular slide rule by Dietzgen with instruction leaflet and case License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Subjects: circular slide rule Temporal: 1955 Source: Science Museum Creator: Dietzgen Identifier: 1998-227 Go to resource More Like this...
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