Modifiche

{{PatentInfo |Inventor=Robert T. Pollock |Assignee=Pollock Pen Company |Country=US |ApplicationNum=619624 |ApplicationDate=1923-02-17 |PatentNum=1724107 |PatentDate=1929-09-13 |PriorityDate=1923-02-17 |Titolo=Fountain pen |Marca=John Hancock |Descrizi...
{{PatentInfo
|Inventor=Robert T. Pollock
|Assignee=Pollock Pen Company
|Country=US
|ApplicationNum=619624
|ApplicationDate=1923-02-17
|PatentNum=1724107
|PatentDate=1929-09-13
|PriorityDate=1923-02-17
|Titolo=Fountain pen
|Marca=John Hancock
|Descrizione=Alimentatore
}}
==Informazioni==
Brevetto per un alimentatore.