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Title: Tension set, Hewlett insulators I 7614, two in series, with [Go to resource]
Description: Tension set, Hewlett insulators I 7614, two in series, with clamp for A.C.S.R. conductor. (Non-extracted core) License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Source: Science Museum Identifier: 1931-727 Go to resource More Like this...
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