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{{PatentInfo |Inventor=William I. Ferris |Assignee=L. E. Waterman Company |Country=US |ApplicationNum=514264 |ApplicationDate=1909-08-23 |PatentNum=950817 |PatentDate=1910-03-01 |PriorityDate=1909-08-23 |Titolo=Fountain-pen |Marca=Waterman |Descrizione...
{{PatentInfo
|Inventor=William I. Ferris
|Assignee=L. E. Waterman Company
|Country=US
|ApplicationNum=514264
|ApplicationDate=1909-08-23
|PatentNum=950817
|PatentDate=1910-03-01
|PriorityDate=1909-08-23
|Titolo=Fountain-pen
|Marca=Waterman
|Descrizione=Caricamento [[sleeve filler]]
}}
==Informazioni==
Brevetto per un caricamento [[sleeve filler]].