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Title: Two examples of Clissold's patent 1861 pitch chain: piece 3" [Go to resource]
Description: Two examples of Clissold's patent 1861 pitch chain: piece 3" pitch rawhide and wooden blocks and two pieces from a 2. 3" pitch chain of wooden blocks only. License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Subjects: power transmission chain Source: Science Museum Identifier: 1918-228 Go to resource More Like this...
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