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Title: Clock with compound pendulum and unusual dead-beat escapemen [Go to resource]
Description: Clock with compound pendulum and unusual dead-beat escapement by the Kee-Less Clock Company, patented in 1919 License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Source: Science Museum Creator: Kee-Less Clock Co. (maker) Identifier: http://collectionsonline.nmsi.ac.uk/grab... Go to resource More Like this...
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