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Title: Copal, battery electric, digital alarm clock, tuning fork mo [Go to resource]
Description: Copal, battery electric, digital alarm clock, tuning fork movement with magnetic escapement by Copal Co. Ltd., Japan, 1975-1979. License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Temporal: 1975-1979 Source: Science Museum Identifier: http://collectionsonline.nmsi.ac.uk/grab... Go to resource More Like this...
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