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File:Patent-US-1300849.pdf

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Original file(1,159 × 1,704 pixels, file size: 364 KB, MIME type: application/pdf, 7 pages)
Inventor

David J. La France, William P. De Witt

Assignee

De Witt La France Co.

Country

US

Application N°

233692

Application Date

1918-05-10

Patent N°

1300849

Brevettato

1919-04-15

Priorità

1918-05-10

Brand

De Witt-La France

Title

Fountain-pen

Description

Blocco afflusso inchiostro

Riferimenti esterni

Informazioni

Brevetto per un dispositivo interno al fusto della penna per bloccare l'afflusso dell'inchiostro all'alimentatore ed evitare perdite.

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current00:52, 20 August 2012Thumbnail for version as of 00:52, 20 August 20121,159 × 1,704, 7 pages (364 KB)Piccardi (talk | contribs){{PatentInfo |Inventor=David J. La France, William P. De Witt |Assignee=De Witt La France Co. |Country=US |ApplicationNum=233692 |ApplicationDate=1918-05-10 |PatentNum=1300849 |PatentDate=1919-04-15 |PriorityDate=1918-05-10 |Titolo=Fountain-pen |Marca=...
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