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{{PatentInfo |Inventor=Lynn P. Martin |Assignee=W. A. Sheaffer Pen Company |Country=US |ApplicationNum=433519 |ApplicationDate=1954-06-01 |PatentNum=2799246 |PatentDate=1952-09-16 |PriorityDate=1954-06-01 |Titolo=Writing implements |Marca=Sheaffer |Des...
{{PatentInfo
|Inventor=Lynn P. Martin
|Assignee=W. A. Sheaffer Pen Company
|Country=US
|ApplicationNum=433519
|ApplicationDate=1954-06-01
|PatentNum=2799246
|PatentDate=1952-09-16
|PriorityDate=1954-06-01
|Titolo=Writing implements
|Marca=Sheaffer
|Descrizione=Meccanismo dello ''[[snorkel]]''
}}
==Informazioni==
Brevetto per il meccanismo dello ''[[snorkel]]''.