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Die große Enzyklopädie des mechanischen Rechnens

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Search results for: Lemaignen, Robert Bertin August


 
  • Patent:GB190815094 15.07.1909 Lemaignen, Robert Bertin August (P) : Improvements in or relating to Calculating Machines
  • Patent:GB190815095 16.07.1909 Lemaignen, Robert Bertin August (P) : Improvements in or relating to Calculating Machines, Cash Registers and the like

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