File:Patent-GB-514513.pdf

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Inventor	Leslie William Johnson, Edward Stephen Sears
Assignee	Mabie, Todd & Company Limited
Country	GB
Application N°	10691/38
Application Date	1938-04-07
Patent N°	514513
Brevettato	1939-11-10
Priorità	1938-04-07
Brand	Swan
Title	Improvements in or relating to self-filling fountain pens
Description	Sistema di caricamento

Brevetto per un sistema di caricamento a sfiatatoio, una variante del Visofil, usato sulle Blackbird Topfiller.

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current	15:22, 25 April 2013		1,295 × 1,752, 10 pages (736 KB)	Piccardi (talk \| contribs)	{{PatentInfo \|Inventor=Leslie William Johnson, Edward Stephen Sears \|Assignee=Mabie, Todd & Company Limited \|Country=GB \|ApplicationNum=10691/38 \|ApplicationDate=1938-04-07 \|PatentNum=514513 \|PatentDate=1939-11-10 \|PriorityDate=1938-04-07 \|Titolo=Impro...

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