File:Patent-US-2580753.pdf

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Original file(1,159 × 1,704 pixels, file size: 305 KB, MIME type: application/pdf, 5 pages)
Inventor

Herman C. Frentzel

Assignee

The Parker Pen Company

Country

US

Application N°

627996

Application Date

1945-11-13

Patent N°

2580753

Brevettato

1952-01-01

Priorità

1945-11-13

Brand

Parker

Title

Ball point fountain pen

Description

Penna a sfera

Riferimenti esterni

Informazioni

Brevetto per una penna a sfera. Riferimenti a nº US-365747, nº US-378897, nº US-1583718, nº US-1585843, nº US-2398548 e nº US-2400679.

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current13:06, 11 August 2013Thumbnail for version as of 13:06, 11 August 20131,159 × 1,704, 5 pages (305 KB)Piccardi (talk | contribs){{PatentInfo |Inventor=Herman C. Frentzel |Assignee=The Parker Pen Company |Country=US |ApplicationNum=627996 |ApplicationDate=1945-11-13 |PatentNum=2580753 |PatentDate=1952-01-01 |PriorityDate=1945-11-13 |Titolo=Ball point fountain pen |Marca=Parker |...
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