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{{PatentInfo |Inventor=Robert T. Pollock |Assignee=Robert T. Pollock |Country=US |ApplicationNum=707444 |ApplicationDate=1924-04-18 |PatentNum=1574930 |PatentDate=1926-03-02 |PriorityDate=1924-04-18 |Titolo=Fountain pen |Marca=John Hancock |Descrizion...