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{{PatentInfo |Inventor=John C. Wahl |Assignee=The Wahl Company |Country=US |ApplicationNum=737540 |ApplicationDate=1924-09-13 |PatentNum=1735224 |PatentDate=1929-11-12 |PriorityDate=1924-09-13 |Titolo=Fountain-pen assembling |Marca=Eversharp |Descrizio...