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Title: Two Evershed and Vignoles conductivity indicators with adjus [Go to resource]
Description: Two Evershed and Vignoles conductivity indicators with adjustable alarm contacts nos. 274162, 1251528 License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Source: Science Museum Creator: Evershed & Vignoles Ltd Identifier: 1980-743 Go to resource More Like this...
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