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Title: Single Pole Switch, by Siemens Schuckert, no. 1236509 C [Go to resource]
Description: Single Pole Switch, by Siemens Schuckert, no. 1236509 C License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Source: Science Museum Creator: Siemens and Schuckert (maker) Identifier: 1922-454 Go to resource More Like this...
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