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Title: Locomotive muffled "pop" safety valve, sectioned, patented b [Go to resource]
Description: Locomotive muffled "pop" safety valve, sectioned, patented by G.Crosby between 1875 and 1905. License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Subjects: safety valve Temporal: 1875-1905 Source: Science Museum Identifier: http://collectionsonline.nmsi.ac.uk/grab... Go to resource More Like this...
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