Modifiche

{{PatentInfo |Inventor=John T. Davison |Assignee=John T. Davison |Country=US |ApplicationNum=233436 |ApplicationDate=1904-11-19 |PatentNum=787152 |PatentDate=1905-04-11 |PriorityDate=1904-11-19 |Titolo=Self-filling fountain-pen |Marca=Walker Davison,Pa...
{{PatentInfo
|Inventor=John T. Davison
|Assignee=John T. Davison
|Country=US
|ApplicationNum=233436
|ApplicationDate=1904-11-19
|PatentNum=787152
|PatentDate=1905-04-11
|PriorityDate=1904-11-19
|Titolo=Self-filling fountain-pen
|Marca=Walker Davison,Parker
|Descrizione=Caricamento a [[pulsante di fondo]]
}}
==Informazioni==
Brevetto del caricamento a [[Used for feature::pulsante di fondo]], comprato poi dalla [[Parker]] ed usato a partire dalle [[Jack Knife Lucky Curve]] (vedi [http://www.fountainpennetwork.com/forum/index.php/topic/250375-walker-davison-eyedropper/]).