Piccardi
{{PatentInfo |Inventor=Dewitt C. Demarest |Assignee=Dewitt C. Demarest |Country=US |ApplicationNum=633739 |ApplicationDate=1911-07-17 |PatentNum=1112362 |PatentDate=1914-09-29 |PriorityDate=1911-07-17 |Titolo=Fountain-pen |Marca=Unbranded |Descrizione=...