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{{PatentInfo |Inventor=John C. Wahl |Assignee=Eversharp Inc. |Country=US |ApplicationNum=609277 |ApplicationDate=1945-08-06 |PatentNum=2483329 |PatentDate=1949-09-27 |PriorityDate=1945-08-06 |Titolo=Writing instrument |Marca=Eversharp |Descrizione=Penn...
{{PatentInfo
|Inventor=John C. Wahl
|Assignee=Eversharp Inc.
|Country=US
|ApplicationNum=609277
|ApplicationDate=1945-08-06
|PatentNum=2483329
|PatentDate=1949-09-27
|PriorityDate=1945-08-06
|Titolo=Writing instrument
|Marca=Eversharp
|Descrizione=Penna a sfera
}}
==Informazioni==
Brevetto per una penna a sfera. Riferimenti a {{MentionPatent|US|1205004}}, {{MentionPatent|US|1461823}}, {{MentionPatent|US|1671125}}, {{MentionPatent|US|1701263}}, {{MentionPatent|US|1811763}}, {{MentionPatent|US|1839160}}, {{MentionPatent|US|1922831}}, {{MentionPatent|US|2107424}}, {{MentionPatent|US|2398548}} e {{MentionPatent|US|2428960}}.
|Inventor=John C. Wahl
|Assignee=Eversharp Inc.
|Country=US
|ApplicationNum=609277
|ApplicationDate=1945-08-06
|PatentNum=2483329
|PatentDate=1949-09-27
|PriorityDate=1945-08-06
|Titolo=Writing instrument
|Marca=Eversharp
|Descrizione=Penna a sfera
}}
==Informazioni==
Brevetto per una penna a sfera. Riferimenti a {{MentionPatent|US|1205004}}, {{MentionPatent|US|1461823}}, {{MentionPatent|US|1671125}}, {{MentionPatent|US|1701263}}, {{MentionPatent|US|1811763}}, {{MentionPatent|US|1839160}}, {{MentionPatent|US|1922831}}, {{MentionPatent|US|2107424}}, {{MentionPatent|US|2398548}} e {{MentionPatent|US|2428960}}.