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Title: Hartmann and Braun voltmeter no.10222 scaled 0-650V, c.1890, [Go to resource]
Description: Hartmann and Braun voltmeter no.10222 scaled 0-650V, c.1890, made by Hartmann & Braun, Frankfurt for the Electric Construction Corporation Ltd. License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Subjects: voltmeters Temporal: 1890 Source: Science Museum Creator: Hartmann and Braun Identifier: http://collectionsonline.nmsi.ac.uk/grab... Go to resource More Like this...
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