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Title: Log-log Duplex slide-rule, plastic, 12 7/8" x 1 3/4", Janus [Go to resource]
Description: Log-log Duplex slide-rule, plastic, 12 7/8" x 1 3/4", Janus series No. T.50, with cursor with box. License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Subjects: slide rule (log-log) Temporal: 1958-1959 Source: Science Museum Creator: Blundell Rules Limited Identifier: 1959-170 Go to resource More Like this...
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