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{{PatentInfo |Inventor=Marlin S. Baker, Robert W. Randolph |Assignee=The Parker Pen Company |Country=US |ApplicationNum=43468 |ApplicationDate=1948-08-10 |PatentNum=2528328 |PatentDate=1950-10-31 |PriorityDate=1948-08-10 |Titolo=Clutch mechanism for me...
{{PatentInfo
|Inventor=Marlin S. Baker, Robert W. Randolph
|Assignee=The Parker Pen Company
|Country=US
|ApplicationNum=43468
|ApplicationDate=1948-08-10
|PatentNum=2528328
|PatentDate=1950-10-31
|PriorityDate=1948-08-10
|Titolo=Clutch mechanism for mechanical pencils
|Marca=Parker
|Descrizione=Matita meccanica
}}
==Informazioni==
Brevetto per una matita meccanica. Riferimenti a {{MentionPatent|US|1886371}} e {{MentionPatent|US|2179835}}.
|Inventor=Marlin S. Baker, Robert W. Randolph
|Assignee=The Parker Pen Company
|Country=US
|ApplicationNum=43468
|ApplicationDate=1948-08-10
|PatentNum=2528328
|PatentDate=1950-10-31
|PriorityDate=1948-08-10
|Titolo=Clutch mechanism for mechanical pencils
|Marca=Parker
|Descrizione=Matita meccanica
}}
==Informazioni==
Brevetto per una matita meccanica. Riferimenti a {{MentionPatent|US|1886371}} e {{MentionPatent|US|2179835}}.