File:Patent-US-1876298.pdf

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Original file(1,159 × 1,704 pixels, file size: 120 KB, MIME type: application/pdf, 3 pages)
Inventor

John A. Holland

Assignee

John A. Holland

Country

US

Application N°

507455

Application Date

1931-01-08

Patent N°

1876298

Brevettato

1932-09-06

Priorità

1931-01-08

Brand

Holland

Title

Self-filling pen

Description

Sistema di caricamento

Riferimenti esterni

Informazioni

Brevetto di un caricamento a sfiatatoio di tipo bulb filler, con sezione trasparente per la visibilità del livello di inchiostro. Riferimenti a nº US-1037660.

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Date/TimeThumbnailDimensionsUserComment
current17:03, 28 June 2012Thumbnail for version as of 17:03, 28 June 20121,159 × 1,704, 3 pages (120 KB)Piccardi (talk | contribs){{PatentInfo |Inventor=John A. Holland |Assignee=John A. Holland |Country=US |ApplicationNum=507455 |ApplicationDate=1931-01-08 |PatentNum=1876298 |PatentDate=1932-09-06 |PriorityDate=1931-01-08 |Titolo=Self-filling pen |Marca=Holland |Descrizione=Car...
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