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{{PatentInfo |Inventor=Arthur E. Andrews, William F. Johnson |Assignee=Mentmore Manufacturing Company Limited |Country=GB |ApplicationNum=19137/43 |ApplicationDate=1943-11-16 |PatentNum=569286 |PatentDate=1945-05-16 |PriorityDate=1943-11-16 |Titolo=Imp...
{{PatentInfo
|Inventor=Arthur E. Andrews, William F. Johnson
|Assignee=Mentmore Manufacturing Company Limited
|Country=GB
|ApplicationNum=19137/43
|ApplicationDate=1943-11-16
|PatentNum=569286
|PatentDate=1945-05-16
|PriorityDate=1943-11-16
|Titolo=Improvements in or relating to ink reservoir pens
|Marca=Mentmore
|Descrizione=[[Pennino]] a tre fenditure
}}
==Informazioni==
Brevetto per un particolare esemplare di [[Used for feature::pennino]] a forma di cono con tre [[fenditura|fenditure]]. {{SamePatent|CH|247460}} {{SamePatent|US|2431015}} {{SamePatent|BE|463518}}