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{{PatentInfo |Inventor=John C. Wahl |Assignee=The Wahl Company |Country=US |ApplicationNum=608954 |ApplicationDate=1922-12-26 |PatentNum=1506207 |PatentDate=1924-08-26 |PriorityDate=1922-12-26 |Titolo=Fastening device to be used in connection with mech...
{{PatentInfo
|Inventor=John C. Wahl
|Assignee=The Wahl Company
|Country=US
|ApplicationNum=608954
|ApplicationDate=1922-12-26
|PatentNum=1506207
|PatentDate=1924-08-26
|PriorityDate=1922-12-26
|Titolo=Fastening device to be used in connection with mechanical pencils, fountain pens, and the like
|Marca=Eversharp
|Descrizione=Attacco per matita meccanica
}}
==Informazioni==
Brevetto per l'anellino di aggancio di una matita meccanica.

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