File:Patent-US-2428854.pdf

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Original file(1,159 × 1,704 pixels, file size: 434 KB, MIME type: application/pdf, 7 pages)
Inventor

Robert W. Randolph

Assignee

The Parker Pen Company

Country

US

Application N°

619518

Application Date

1945-10-01

Patent N°

2428854

Brevettato

1947-10-14

Priorità

1945-10-01

Brand

Parker

Title

Writing instrument

Description

Penna a sfera

Riferimenti esterni

Informazioni

Brevetto per una penna a sfera. Riferimenti a nº US-2398548 e nº US-378897, ed inoltre nº GB-189002017.

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Date/TimeThumbnailDimensionsUserComment
current15:52, 6 August 2012Thumbnail for version as of 15:52, 6 August 20121,159 × 1,704, 7 pages (434 KB)Piccardi (talk | contribs){{PatentInfo |Inventor=Robert W. Randolph |Assignee=The Parker Pen Company |Country=US |ApplicationNum=619518 |ApplicationDate=1945-10-01 |PatentNum=2428854 |PatentDate=1947-10-14 |PriorityDate=1945-10-01 |Titolo=Writing instrument |Marca=Parker |Descr...
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