File:Patent-US-298582.pdf

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Original file(1,159 × 1,704 pixels, file size: 91 KB, MIME type: application/pdf, 3 pages)
Inventor

John A. Holland

Assignee

John A. Holland

Country

US

Application N°

298582

Application Date

1883-04-16

Patent N°

298582

Brevettato

1884-05-13

Priorità

1883-04-16

Brand

Holland

Title

Fountain-pen

Description

Proto-stilografica

Riferimenti esterni

Informazioni

Brevetto per una stilografica primordiale, con il flusso di inchiostro regolato da una valvola controllata dall'inserimento del cappuccio.

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current00:01, 16 October 2012Thumbnail for version as of 00:01, 16 October 20121,159 × 1,704, 3 pages (91 KB)Piccardi (talk | contribs){{PatentInfo |Inventor=John A. Holland |Assignee=John A. Holland |Country=US |ApplicationNum=298582 |ApplicationDate=1883-04-16 |PatentNum=298582 |PatentDate=1884-05-13 |PriorityDate=1883-04-16 |Titolo=Fountain-pen |Marca=Holland |Descrizione=Stilograf...
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