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Title: Steadiness test comprising 'm' and 'V' shapes in double rows [Go to resource]
Description: Steadiness test comprising 'm' and 'V' shapes in double rows of metal pins mounted on insulating board. License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Subjects: steadiness test Temporal: 1920-1950 Source: Science Museum Identifier: 1994-1255/50 Go to resource More Like this...
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