Piccardi
{{PatentInfo |Inventor=John S. Barnes |Assignee=John S. Barnes |Country=US |ApplicationNum=310963 |ApplicationDate=1906-04-10 |PatentNum=844576 |PatentDate=1907-02-19 |PriorityDate=1906-04-10 |Titolo=Fountain-pen |Marca=Unbranded |Descrizione=Alimentat...