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{{PatentInfo |Inventor=Robert W. Randolph |Assignee=The Parker Pen Company |Country=US |ApplicationNum=690971 |ApplicationDate=1946-08-16 |PatentNum=2454086 |PatentDate=1948-11-16 |PriorityDate=1946-08-16 |Titolo=Ball-point writing instrument |Marca=Pa...
{{PatentInfo
|Inventor=Robert W. Randolph
|Assignee=The Parker Pen Company
|Country=US
|ApplicationNum=690971
|ApplicationDate=1946-08-16
|PatentNum=2454086
|PatentDate=1948-11-16
|PriorityDate=1946-08-16
|Titolo=Ball-point writing instrument
|Marca=Parker
|Descrizione=Penna a sfera
}}
==Informazioni==
Brevetto per una penna a sfera. Riferimenti a {{MentionApplication|1945-08-13|610423}}.
|Inventor=Robert W. Randolph
|Assignee=The Parker Pen Company
|Country=US
|ApplicationNum=690971
|ApplicationDate=1946-08-16
|PatentNum=2454086
|PatentDate=1948-11-16
|PriorityDate=1946-08-16
|Titolo=Ball-point writing instrument
|Marca=Parker
|Descrizione=Penna a sfera
}}
==Informazioni==
Brevetto per una penna a sfera. Riferimenti a {{MentionApplication|1945-08-13|610423}}.