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{{PatentInfo |Inventor=Yves Zuber |Assignee=Yves Zuber |Country=FR |ApplicationNum=719763 |ApplicationDate=1930-10-04 |PatentNum=719763 |PatentDate=1932-02-10 |PriorityDate=1930-10-04 |Titolo=Perfectionnement aux porte-mine |Marca=Stylomine |Descrizion...