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Title: Brooks variable self and mutual inductor 90691, serial no [Go to resource]
Description: Brooks variable self and mutual inductor 90691, serial no.2, made by Leeds & Northup Co. Philadelphia, U.S.A. License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Source: Science Museum Creator: Leeds and Northrup Co. (maker) Identifier: 1983-558 Go to resource More Like this...
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