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Title: Hand operated double ratchet driving gear for obtaining rota [Go to resource]
Description: Hand operated double ratchet driving gear for obtaining rotative from reciprocating motion, on stand License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Subjects: driving gear Temporal: c. 1908 Source: Science Museum Creator: Coleman, E.W. Identifier: 1911-134 Go to resource More Like this...
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