File:Patent-US-2110558.pdf
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Dettagli
Inventor |
Craig R. Sheaffer |
---|---|
Assignee |
W. A. Sheaffer Pen Company |
Country |
US |
Application N° |
80328 |
Application Date |
1936-05-18 |
Patent N° |
2110558 |
Brevettato |
1938-03-08 |
Priorità |
1936-05-18 |
Brand | |
Title |
Fountain pen |
Description |
Blocco afflusso inchiostro |
Riferimenti esterni
Informazioni
Brevetto per un meccanismo di blocco dell'afflusso di inchiostro al pennino, analogo all'Ink Shut-off della Eversharp, non ne è nota una realizzazione.
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current | 22:52, 14 July 2012 | ![]() | 1,159 × 1,704, 4 pages (191 KB) | Piccardi (talk | contribs) | {{PatentInfo |Inventor=Craig R. Sheaffer |Assignee=W. A. Sheaffer Pen Company |Country=US |ApplicationNum=80328 |ApplicationDate=1936-05-18 |PatentNum=2110558 |PatentDate=1938-03-08 |PriorityDate=1936-05-18 |Titolo=Fountain pen |Marca=Sheaffer |Descriz... |
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