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Die große Enzyklopädie des mechanischen Rechnens

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Search results for: Busch, Richard


 
  • Patent:US3399830 03.09.1968 Busch, Richard (P) Sperry Rand (P) Corp : Accumulator Selecting And Tens Transfer Mechanism For Calculating Machine
  • Patent:US3464623 02.09.1969 Busch, Richard (P) Sperry Rand (P) Corp : Control Mechanism For Calculating Machine

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