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Die große Enzyklopädie des mechanischen Rechnens

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Search results for: Duke, Keith Albert


 
  • Patent:GB802705 08.10.1958 Duke, Keith Albert (P) British Tabulating (P) Mach Co Ltd : Improvements in or relating to digital calculating apparatus
  • Patent:GB819641 09.09.1959 Duke, Keith Albert (P) Int Computers and Tabulators Ltd : Improvements in or relating to calculating apparatus

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