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Title: Photographic archive [Go to resource]
Description: Set of 36 photographic transparencies showing semi-conductors -gun device characteristics. License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Subjects: Photographic Transparency Temporal: c. 1960 Source: Science Museum Creator: GEC Hirst Research Centre Identifier: 2003-196 Go to resource More Like this...
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