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Title: Coloured sectional drawing, scale 1:2, of Cockburn's Deadwei [Go to resource]
Description: Coloured sectional drawing, scale 1:2, of Cockburn's Deadweight Safety Valve, 1924. (An example of this valve is on inventory as 1924-348). License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Source: Science Museum Identifier: 1933-575 Go to resource More Like this...
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