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Title: Holtzapffel lapping machine base and treadle drive [Go to resource]
Description: Holtzapffel lapping machine base and treadle drive License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Source: Science Museum Creator: Holtzapffel, Messrs. (maker) Identifier: http://collectionsonline.nmsi.ac.uk/grab... Go to resource More Like this...
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