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Die große Enzyklopädie des mechanischen Rechnens

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Search results for: Hultman, Ivar


 
  • Patent:FR282940 12.11.1898 Hultman, Ivar (P); Pauli, Knut Martin (P); Haglund, Julius Waldemar (P) : Machine à calculer
  • Patent:GB190511975 22.02.1906 Johanson, Adolf Magnus (P) und Hultman, Ivar (P) : Calculating Machine

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