File:Patent-US-2513380.pdf

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Original file(1,159 × 1,704 pixels, file size: 281 KB, MIME type: application/pdf, 4 pages)
Inventor

Samuel E. Townsend

Assignee

The Esterbrook Pen Company

Country

US

Application N°

733073

Application Date

1947-03-07

Patent N°

2513380

Brevettato

1950-07-04

Priorità

1947-03-07

Brand

Esterbrook

Title

Writing instrument

Description

Pennino a sfera

Riferimenti esterni

Informazioni

Brevetto per un pennino realizzato come un cono con una sferetta in cima, funzionante comunque per capillarità. Riferimenti a nº US-1527971, nº US-2149557, nº US-2292381 e nº US-2430023.

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current23:03, 6 August 2012Thumbnail for version as of 23:03, 6 August 20121,159 × 1,704, 4 pages (281 KB)Piccardi (talk | contribs){{PatentInfo |Inventor=Samuel E. Townsend |Assignee=The Esterbrook Pen Company |Country=US |ApplicationNum=733073 |ApplicationDate=1947-03-07 |PatentNum=2430023 |PatentDate=1950-07-04 |PriorityDate=1947-03-07 |Titolo=Writing instrument |Marca=Esterbroo...
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