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{{PatentInfo |Inventor=David Kahn, Karl Weisser |Assignee=David Kahn Inc |Country=US |ApplicationNum=702753 |ApplicationDate=1946-10-11 |PatentNum=2642842 |PatentDate=1953-06-23 |PriorityDate=1946-10-11 |Titolo=Fountain pen |Marca=Wearever |Descrizione...