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Die große Enzyklopädie des mechanischen Rechnens

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Patent:CH71215


Patent:CH 71215
Title:Rechenmaschine
Date:16.12.1915
Place:USA
Country:Switzerland
Person:
Company:Burroughs (P)
Internal Links:Burroughs Calculator (Klasse 5)
Keywords:
Link to the patent office:
(without guarantee)
 CH71215


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Aus der Patentschrift CH71215