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Rechnerlexikon

Die große Enzyklopädie des mechanischen Rechnens

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Patents  Sovjet Union  1992

 
  • Patent:SU1717333 07.03.1992 Elmir A. Ajzuppe Vladimir G. Sechkin Vnii Razrabotki Ekspluatatsii : Planimeter for mechanical wrench
  • Patent:SU1762106 15.09.1992 Evgenij A. Korzhavin Novosib Nii Aviat T Organizats : Planimeter for computing area on topographic map

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