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Die große Enzyklopädie des mechanischen Rechnens

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Patent:DE23509


Patent:DE 23509
Title:Rechenmaschine
Date:28.12.1882
Place:Augsburg
Country:Germany
Person:Kögel, R.
Company:
Internal Links:Lehrmittel, Kugelrechner
Keywords:
Link to the patent office:
(without guarantee)
 DE23509


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