File:Patent-US-426692.pdf
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Dettagli
Inventor |
William W. Stewart |
---|---|
Assignee |
William W. Stewart |
Country |
US |
Application N° |
324565 |
Application Date |
1889-09-20 |
Patent N° |
426692 |
Brevettato |
1890-04-29 |
Priorità |
1889-09-20 |
Brand | |
Title |
Fountain-pen |
Description |
Riferimenti esterni
Informazioni
Brevetto per un sistema di alimentazione di tipo overfeed. 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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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 23:11, 12 November 2012 | ![]() | 1,159 × 1,704, 4 pages (202 KB) | Piccardi (talk | contribs) | {{PatentInfo |Inventor=William W. Stewart |Assignee=William W. Stewart |Country=US |ApplicationNum=324565 |ApplicationDate=1889-09-20 |PatentNum=426962 |PatentDate=1890-04-29 |PriorityDate=1889-09-20 |Titolo=Fountain-pen |Marca=Swan |Descrizione=Alimen... |
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