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Title: Helix current meter by Hilger & Watts Ltd, successor to Mk V [Go to resource]
Description: Helix current meter by Hilger & Watts Ltd, successor to Mk VI acoustic meter, c 1965, marked SK70 Mk II License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Subjects: current meter Temporal: 1960-1965 Source: Science Museum Creator: Hilger & Watts Ltd Identifier: 1998-746 Go to resource More Like this...
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