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Title: Coloured drawing (25" x 20") showing four views (scale 1:12) [Go to resource]
Description: Coloured drawing (25" x 20") showing four views (scale 1:12) of Dog Treadmill operating a Butter Churn License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Source: Science Museum Identifier: 1958-226 Go to resource More Like this...
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