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Title: Electrically maintained tuning fork type D-603-B 800 cps, no [Go to resource]
Description: Electrically maintained tuning fork type D-603-B 800 cps, no. 463795, by Muirhead and Co. Ltd., December 1968 License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Temporal: 1968 Source: Science Museum Creator: Muirhead and Company Limited Identifier: 1989-1107 Go to resource More Like this...
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