File:Patent-US-841475.pdf

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Original file(1,159 × 1,704 pixels, file size: 130 KB, MIME type: application/pdf, 3 pages)
Inventor

Paul E. Wirt

Assignee

Paul E. Wirt

Country

US

Application N°

311421

Application Date

1906-04-13

Patent N°

841475

Brevettato

1907-01-15

Priorità

1906-04-13

Brand

Wirt

Title

Self-filling fountain-pen

Description

Caricamento a siringa

Riferimenti esterni

Informazioni

Brevetto per una variante di caricamento a siringa con un ingegnoso sistema di alberino contenuto all'interno del fusto ed agganciabile al pistone.

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current19:03, 23 July 2012Thumbnail for version as of 19:03, 23 July 20121,159 × 1,704, 3 pages (130 KB)Piccardi (talk | contribs){{PatentInfo |Inventor=Paul E. Wirt |Assignee=Paul E. Wirt |Country=US |ApplicationNum=311421 |ApplicationDate=1906-04-13 |PatentNum=841475 |PatentDate=1907-01-15 |PriorityDate=1906-04-13 |Titolo=Self-filling fountain-pen |Marca=Wirt |Descrizione=Caric...
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