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{{PatentInfo |Inventor=Ivan D. Tefft |Assignee=The Wahl Company |Country=US |ApplicationNum=551121 |ApplicationDate=1922-04-10 |PatentNum=1624190 |PatentDate=1927-04-12 |PriorityDate=1922-04-10 |Titolo=Fountain pen |Marca=Eversharp |Descrizione=Levetta...