Piccardi
{{PatentInfo |Inventor=Seth S. Crocker |Assignee=Seth S. Crocker |Country=US |ApplicationNum=78001 |ApplicationDate=1916-02-12 |PatentNum=1212744 |PatentDate=1917-01-16 |PriorityDate=1916-02-12 |Titolo=Fountain-pen |Marca=Crocker |Descrizione=Sistema ...