File:Patent-US-1724106.pdf

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Original file(1,159 × 1,704 pixels, file size: 283 KB, MIME type: application/pdf, 5 pages)
Inventor

Robert T. Pollock

Assignee

Pollock Pen Company

Country

US

Application N°

503567

Application Date

1921-09-21

Patent N°

1724106

Brevettato

1929-09-13

Priorità

1921-09-21

Brand

John Hancock

Title

Cartridge pen

Description

Caricamento a cartuccia

Riferimenti esterni

Informazioni

Brevetto per un caricamento a cartuccia con cartuccia in rame.

File history

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Date/TimeThumbnailDimensionsUserComment
current01:17, 29 June 2012Thumbnail for version as of 01:17, 29 June 20121,159 × 1,704, 5 pages (283 KB)Piccardi (talk | contribs){{PatentInfo |Inventor=Robert T. Pollock |Assignee=Pollock Pen Company |Country=US |ApplicationNum=530073 |ApplicationDate=1921-09-21 |PatentNum=1724106 |PatentDate=1929-09-13 |PriorityDate=1921-09-21 |Titolo=Cartridge pen |Marca=John Hancock |Descriz...
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