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Die große Enzyklopädie des mechanischen Rechnens

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Patent:GB187701739


Patent:GB 187701739
Title:An improved adding machine
Date:04.05.1877
Place:Montpeliersquare, Middlesex
Country:Great Britain
Person:John Edward Waller
Company:
Internal Links:
Keywords:
Link to the patent office:
(without guarantee)
 GB187701739


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