Piccardi
{{PatentInfo |Inventor=Felix Riesenberg |Assignee=Maud C. Riesenberg |Country=US |ApplicationNum=64055 |ApplicationDate=1915-11-29 |PatentNum=1251421 |PatentDate=1917-12-25 |PriorityDate=1915-11-29 |Titolo=Fountain-pen filler |Marca=Unbranded |Descrizi...