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{{PatentInfo |Inventor=Ivan D. Tefft |Assignee=The Wahl Company |Country=US |ApplicationNum=551121 |ApplicationDate=1922-04-10 |PatentNum=1624190 |PatentDate=1927-04-12 |PriorityDate=1922-04-10 |Titolo=Fountain pen |Marca=Eversharp |Descrizione=Levetta...
{{PatentInfo
|Inventor=Ivan D. Tefft
|Assignee=The Wahl Company
|Country=US
|ApplicationNum=551121
|ApplicationDate=1922-04-10
|PatentNum=1624190
|PatentDate=1927-04-12
|PriorityDate=1922-04-10
|Titolo=Fountain pen
|Marca=Eversharp
|Descrizione=Levetta [[Wahl Engine Turned]]
}}
==Informazioni==
Brevetto per la levetta delle [[Wahl Engine Turned]].
|Inventor=Ivan D. Tefft
|Assignee=The Wahl Company
|Country=US
|ApplicationNum=551121
|ApplicationDate=1922-04-10
|PatentNum=1624190
|PatentDate=1927-04-12
|PriorityDate=1922-04-10
|Titolo=Fountain pen
|Marca=Eversharp
|Descrizione=Levetta [[Wahl Engine Turned]]
}}
==Informazioni==
Brevetto per la levetta delle [[Wahl Engine Turned]].