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Title: Megger earth resistance tester - universal type [Go to resource]
Description: Megger earth resistance tester - universal type. Serial no. EX530729, ranges 20, 200, 2, 000 ohms. Prototype, made in 1953 License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Temporal: 1953 Source: Science Museum Identifier: 1980-248 Go to resource More Like this...
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