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{{PatentInfo |Inventor=William Welty |Assignee=William Welty |Country=US |ApplicationNum=235693 |ApplicationDate=1904-12-06 |PatentNum=803866 |PatentDate=1905-11-07 |PriorityDate=1904-12-06 |Titolo=Fountain-pen feed |Marca=Welty |Descrizione=[[Alimenta...