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Patent:IT174149


Patent:IT 174149
Title:Dispositivo meccanico semplice per addizionare e sottrarre numeri qualsiasi
Date:12.04.1919
Place:Milano Italien
Country:Italy
Person:Virgilito, Agostino
Company:
Internal Links:La Popolare
Keywords:
Link to the patent office:
(without guarantee)
 IT174149


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