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{{PatentInfo |Inventor=David Kahn, Morris D. Levy |Assignee=David Kahn Inc |Country=US |ApplicationNum=361576 |ApplicationDate=1953-06-15 |PatentNum=2807237 |PatentDate=1957-09-24 |PriorityDate=1953-06-15 |Titolo=Writing instruments |Marca=Wearever |De...
{{PatentInfo
|Inventor=David Kahn, Morris D. Levy
|Assignee=David Kahn Inc
|Country=US
|ApplicationNum=361576
|ApplicationDate=1953-06-15
|PatentNum=2807237
|PatentDate=1957-09-24
|PriorityDate=1953-06-15
|Titolo=Writing instruments
|Marca=Wearever
|Descrizione=Caricamento a levetta
}}
==Informazioni==
Brevetto per una variate del meccanismo interno di un [[Used for feature::caricamento a levetta]]. Riferimenti a {{MentionPatent|US|1156748}}, {{MentionPatent|US|1435446}}, {{MentionPatent|US|1448452}}, {{MentionPatent|US|1569783}}, {{MentionPatent|US|2100648}}, {{MentionPatent|US|2184432}} e {{MentionPatent|US|2325069}} ed inoltre {{MentionPatent|GB|228672}} e {{MentionPatent|GB|232519}}.
|Inventor=David Kahn, Morris D. Levy
|Assignee=David Kahn Inc
|Country=US
|ApplicationNum=361576
|ApplicationDate=1953-06-15
|PatentNum=2807237
|PatentDate=1957-09-24
|PriorityDate=1953-06-15
|Titolo=Writing instruments
|Marca=Wearever
|Descrizione=Caricamento a levetta
}}
==Informazioni==
Brevetto per una variate del meccanismo interno di un [[Used for feature::caricamento a levetta]]. Riferimenti a {{MentionPatent|US|1156748}}, {{MentionPatent|US|1435446}}, {{MentionPatent|US|1448452}}, {{MentionPatent|US|1569783}}, {{MentionPatent|US|2100648}}, {{MentionPatent|US|2184432}} e {{MentionPatent|US|2325069}} ed inoltre {{MentionPatent|GB|228672}} e {{MentionPatent|GB|232519}}.