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Title: Callender cable calculating machine, patented 1902, and manu [Go to resource]
Description: Callender cable calculating machine, patented 1902, and manufactured by R.W. Paul License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Subjects: calculating machine Source: Science Museum Creator: Paul, R.W. Identifier: 1946-20 Go to resource More Like this...
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