File:Patent-US-254175.pdf
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Dettagli
Inventor |
William W. Stewart |
---|---|
Assignee |
William W. Stewart |
Country |
US |
Application N° |
254175 |
Application Date |
1881-03-16 |
Patent N° |
254175 |
Brevettato |
1882-02-28 |
Priorità |
1881-03-16 |
Brand | |
Title |
Reservoir pen-holder |
Description |
Proto-stilografica |
Riferimenti esterni
Informazioni
Brevetto per una proto-stilografica. 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 | 00:14, 4 December 2013 | 1,159 × 1,704, 3 pages (197 KB) | Piccardi (talk | contribs) | {{PatentInfo |Inventor=William W. Stewart |Assignee=William W. Stewart |Country=US |ApplicationNum=254175 |ApplicationDate=1881-03-16 |PatentNum=254175 |PatentDate=1882-02-28 |PriorityDate=1881-03-16 |Titolo=Reservoir pen-holder |Marca=Swan |Descrizion... |
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