File:Patent-US-1379890.pdf

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Original file(1,159 × 1,704 pixels, file size: 182 KB, MIME type: application/pdf, 3 pages)
Inventor

Paul E. Wirt

Assignee

Paul E. Wirt

Country

US

Application N°

393134

Application Date

1920-06-30

Patent N°

1379890

Brevettato

1921-05-31

Priorità

1920-06-30

Brand

Wirt

Title

Fountain-pen

Description

Caricamento a levetta

Riferimenti esterni

Informazioni

Brevetto per una variante di caricamento a levetta, attinente la costruzione della barra di pressione. Riferimento a nº US-1347800.

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current15:58, 20 July 2012Thumbnail for version as of 15:58, 20 July 20121,159 × 1,704, 3 pages (182 KB)Piccardi (talk | contribs){{PatentInfo |Inventor=Paul E. Wirt |Assignee=Paul E. Wirt |Country=US |ApplicationNum=393134 |ApplicationDate=1920-06-30 |PatentNum=1379890 |PatentDate=1921-05-31 |PriorityDate=1920-06-30 |Titolo=Fountain-pen |Marca=Wirt |Descrizione=[[Caricamento a l...
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