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Title: Omega Series Blundell 405 (10-inch) slide rule with cardboar [Go to resource]
Description: Omega Series Blundell 405 (10-inch) slide rule with cardboard case License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Subjects: slide rule Temporal: 1955-1965 Source: Science Museum Creator: Blundell Rules Limited Identifier: 1998-421 Go to resource More Like this...
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