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Title: Cooke and Wheatstone two-needle telegraph, 1844. [Go to resource]
Description: Cooke and Wheatstone's double needle telegraph, England, 1844. License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Subjects: two-needle telegraphs
telegraphsTemporal: 1844 Source: Science Museum Creator: Wheatstone, Charles, Sir, 1802-1875 Identifier: http://collectionsonline.nmsi.ac.uk/grab... Go to resource More Like this...
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