File:Patent-US-744642.pdf

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Original file(1,159 × 1,704 pixels, file size: 105 KB, MIME type: application/pdf, 3 pages)
Inventor

Harry W. Stone

Assignee

Arthur A. Waterman, William G. Frazer, Hobart W. Geyer

Country

US

Application N°

144031

Application Date

1903-02-19

Patent N°

744642

Brevettato

1903-11-17

Priorità

1903-02-19

Brand

A. A. Waterman

Title

Fountain-pen

Description

Caricamento a torsione

Riferimenti esterni

Informazioni

Brevetto per un sistema di caricamento a torsione, probabilmente il primo attinente il twist filler. Stampigliato sul corpo di alcune A. A. Waterman.

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current17:08, 23 June 2012Thumbnail for version as of 17:08, 23 June 20121,159 × 1,704, 3 pages (105 KB)Piccardi (talk | contribs){{PatentInfo |Inventor=Harry W. Stone |Assignee=Arthur A. Waterman, William G. Frazer, Hobart W. Geyer |Country=US |ApplicationNum=144031 |ApplicationDate=1903-02-19 |PatentNum=744642 |PatentDate=1903-11-17 |PriorityDate=1903-02-19 |Titolo=Fountain-pen...
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