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{{PatentInfo |Inventor=Brook Arthur Denis |Assignee=Conway Stewart & Co. |Country=GB |ApplicationNum=29088/64 |ApplicationDate=1969-07-14 |PatentNum=1255389 |PatentDate=1971-12-01 |PriorityDate=1969-07-14 |Titolo=Improvements in and relating to a writ...
{{PatentInfo
|Inventor=Brook Arthur Denis
|Assignee=Conway Stewart & Co.
|Country=GB
|ApplicationNum=29088/64
|ApplicationDate=1969-07-14
|PatentNum=1255389
|PatentDate=1971-12-01
|PriorityDate=1969-07-14
|Titolo=Improvements in and relating to a writing instruments
|Marca=Conway Stewart
|Descrizione=Penna a sfera
}}
==Informazioni==
Brevetto per una penna a sfera.
|Inventor=Brook Arthur Denis
|Assignee=Conway Stewart & Co.
|Country=GB
|ApplicationNum=29088/64
|ApplicationDate=1969-07-14
|PatentNum=1255389
|PatentDate=1971-12-01
|PriorityDate=1969-07-14
|Titolo=Improvements in and relating to a writing instruments
|Marca=Conway Stewart
|Descrizione=Penna a sfera
}}
==Informazioni==
Brevetto per una penna a sfera.