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{{PatentInfo |Inventor=Benjamin Grieshaber |Assignee=Benjamin Grieshaber |Country=US |ApplicationNum=511873 |ApplicationDate=1909-08-09 |PatentNum=956895 |PatentDate=1910-05-03 |PriorityDate=1909-08-09 |Titolo=Self-Filling Fountain-Pen |Marca=Grieshabe...