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{{PatentInfo |Inventor=Joseph Warren Kessel |Assignee=Joseph Warren Kessel |Country=US |ApplicationNum=528974 |ApplicationDate=1909-11-19 |PatentNum=955517 |PatentDate=1910-04-19 |PriorityDate=1909-11-19 |Titolo=Clip-cap |Marca=Waterman |Descrizione=Un...