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{{PatentInfo |Inventor=Edwards Ernest Ethelbert |Assignee=Conway Stewart & Co. |Country=GB |ApplicationNum=29088/64 |ApplicationDate=1964-07-15 |PatentNum=1039667 |PatentDate=1966-08-17 |PriorityDate=1964-07-15 |Titolo=Improvements in reservoir writin...
{{PatentInfo
|Inventor=Edwards Ernest Ethelbert
|Assignee=Conway Stewart & Co.
|Country=GB
|ApplicationNum=29088/64
|ApplicationDate=1964-07-15
|PatentNum=1039667
|PatentDate=1966-08-17
|PriorityDate=1964-07-15
|Titolo=Improvements in reservoir writing, drawing or marking instruments
|Marca=Conway Stewart
|Descrizione=Penna a sfera
}}
==Informazioni==
Brevetto per una penna a sfera ricaricabile.
|Inventor=Edwards Ernest Ethelbert
|Assignee=Conway Stewart & Co.
|Country=GB
|ApplicationNum=29088/64
|ApplicationDate=1964-07-15
|PatentNum=1039667
|PatentDate=1966-08-17
|PriorityDate=1964-07-15
|Titolo=Improvements in reservoir writing, drawing or marking instruments
|Marca=Conway Stewart
|Descrizione=Penna a sfera
}}
==Informazioni==
Brevetto per una penna a sfera ricaricabile.