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{{PatentInfo |Inventor=John C. Wahl, Ivan D. Tefft |Assignee=The Wahl Company |Country=US |ApplicationNum=575432 |ApplicationDate=1922-07-15 |PatentNum=1585805 |PatentDate=1926-05-25 |PriorityDate=1922-07-15 |Titolo=Fountain pen |Marca=Eversharp |Descr...
{{PatentInfo
|Inventor=John C. Wahl, Ivan D. Tefft
|Assignee=The Wahl Company
|Country=US
|ApplicationNum=575432
|ApplicationDate=1922-07-15
|PatentNum=1585805
|PatentDate=1926-05-25
|PriorityDate=1922-07-15
|Titolo=Fountain pen
|Marca=Eversharp
|Descrizione=Levetta [[Wahl Engine Turned]]
}}
==Informazioni==
Brevetto per il meccanismo della levetta delle [[Wahl Engine Turned]].

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