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Title: Depth gauge [Go to resource]
Description: Depth gauge, for setting locomotive piston valves, cased, by Lentz Patents Ltd., London, 1920-1940 License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Subjects: depth gauge Temporal: 1920-1940 Source: Science Museum Creator: Lentz Patents Ltd. Identifier: 1990-7745 Go to resource More Like this...
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