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{{PatentInfo |Inventor=Eduard Penkala |Assignee=Eduard Penkala |Country=DK |ApplicationNum=09918 |ApplicationDate=1906-12-11 |PatentNum=09918 |PatentDate=1907-08-12 |PriorityDate=1906-12-11 |Titolo=Blyantstiftholder |Marca=Penkala |Descrizione=Porta-mi...
{{PatentInfo
|Inventor=Eduard Penkala
|Assignee=Eduard Penkala
|Country=DK
|ApplicationNum=09918
|ApplicationDate=1906-12-11
|PatentNum=09918
|PatentDate=1907-08-12
|PriorityDate=1906-12-11
|Titolo=Blyantstiftholder
|Marca=Penkala
|Descrizione=Porta-mine
}}
==Informazioni==
Brevetto di un porta mine. {{AdditionTo|DK|09144}} {{SamePatent|FR|06524E}} {{SamePatent|DE|183242}}

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