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{{PatentInfo |Inventor=Eduard Penkala |Assignee=Eduard Penkala |Country=AT |ApplicationNum=31185 |ApplicationDate=1906-09-25 |PatentNum=31185 |PatentDate=1907-12-27 |PriorityDate=1906-09-25 |Titolo=Füllbleistift |Marca=Penkala |Descrizione=Porta-mine...
{{PatentInfo
|Inventor=Eduard Penkala
|Assignee=Eduard Penkala
|Country=AT
|ApplicationNum=31185
|ApplicationDate=1906-09-25
|PatentNum=31185
|PatentDate=1907-12-27
|PriorityDate=1906-09-25
|Titolo=Füllbleistift
|Marca=Penkala
|Descrizione=Porta-mine
}}
==Informazioni==
Brevetto di un porta mine. {{AdditionTo|AT|31184}} {{SamePatent|FR|06524E}} {{SamePatent|DK|09918}} {{SamePatent|GB|190616715}} {{SamePatent|CH|37618}} {{SamePatent|DE|183242}}

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