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{{PatentInfo |Inventor=Robert W. Randolph |Assignee=The Parker Pen Company |Country=US |ApplicationNum=619018 |ApplicationDate=1945-09-28 |PatentNum=2427068 |PatentDate=1947-09-09 |PriorityDate=1945-09-28 |Titolo=Writing instrument |Marca=Parker |Descr...
{{PatentInfo
|Inventor=Robert W. Randolph
|Assignee=The Parker Pen Company
|Country=US
|ApplicationNum=619018
|ApplicationDate=1945-09-28
|PatentNum=2427068
|PatentDate=1947-09-09
|PriorityDate=1945-09-28
|Titolo=Writing instrument
|Marca=Parker
|Descrizione=Penna a sfera
}}
==Informazioni==
Brevetto per una penna a sfera. Riferimenti a {{MentionPatent|US|1853672}}, {{MentionPatent|US|2398548}} e {{MentionPatent|US|2400679}}, ed inoltre {{MentionPatent|DK|33176}}, {{MentionPatent|CH|131125}}.
|Inventor=Robert W. Randolph
|Assignee=The Parker Pen Company
|Country=US
|ApplicationNum=619018
|ApplicationDate=1945-09-28
|PatentNum=2427068
|PatentDate=1947-09-09
|PriorityDate=1945-09-28
|Titolo=Writing instrument
|Marca=Parker
|Descrizione=Penna a sfera
}}
==Informazioni==
Brevetto per una penna a sfera. Riferimenti a {{MentionPatent|US|1853672}}, {{MentionPatent|US|2398548}} e {{MentionPatent|US|2400679}}, ed inoltre {{MentionPatent|DK|33176}}, {{MentionPatent|CH|131125}}.