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Title: Electrically maintained tuning fork byGriffin & Tatlock Limi [Go to resource]
Description: Electrically maintained tuning fork byGriffin & Tatlock Limited. License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Temporal: 1926-1954 Source: Science Museum Creator: Griffin & Tatlock Limited Identifier: 1984-888 Go to resource More Like this...
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