Last modified on 4 November 2011, at 08:54

Category talk:Mechanical calculators

All machines in are based on Odhner pinwheel mechanism. Then i'd suggest to move this category into. In doing this job, it could be useful to create new Odhner's subcategories: Brunsviga, Russian, Original Odhner, similar mechanisms, ... --Ancelli (talk) 08:54, 4 November 2011 (UTC)

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