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Die große Enzyklopädie des mechanischen Rechnens

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Patent:GB190300355


Patent:GB 190300355
Title:Improvements in Adding Machines
Date:21.05.1903
Place:
Country:Great Britain
Person:Lotterhand, Jason Christopher (P)
Company:
Internal Links:
Keywords:
Link to the patent office:
(without guarantee)
 GB190300355


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Aus der Patentschrift GB190300355