File:Patent-US-630526.pdf
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Dettagli
Inventor |
William W. Stewart |
---|---|
Assignee |
William W. Stewart |
Country |
US |
Application N° |
709890 |
Application Date |
1899-03-21 |
Patent N° |
630526 |
Brevettato |
1899-08-08 |
Priorità |
1899-03-21 |
Brand | |
Title |
Self-filling fountain-pen |
Description |
Sistema di caricamento |
Riferimenti esterni
Informazioni
Brevetto per un sistema di caricamento. Riferimenti a nº US-542450. Secondo quanto riportato qui i brevetti di William W. Stewart sarebbero stati utilizzati dalla Swan per la produzione delle loro prime stilografiche negli USA.
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current | 19:49, 11 November 2012 | ![]() | 1,159 × 1,704, 5 pages (244 KB) | Piccardi (talk | contribs) | {{PatentInfo |Inventor=William W. Stewart |Assignee=William W. Stewart |Country=US |ApplicationNum=709890 |ApplicationDate=1899-03-21 |PatentNum=630526 |PatentDate=1899-08-08 |PriorityDate=1899-03-21 |Titolo=Self-filling fountain-pen |Marca=Swan |Descr... |
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