File:Patent-US-298582.pdf
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Dettagli
Inventor |
John A. Holland |
---|---|
Assignee |
John A. Holland |
Country |
US |
Application N° |
298582 |
Application Date |
1883-04-16 |
Patent N° |
298582 |
Brevettato |
1884-05-13 |
Priorità |
1883-04-16 |
Brand | |
Title |
Fountain-pen |
Description |
Proto-stilografica |
Riferimenti esterni
Informazioni
Brevetto per una stilografica primordiale, con il flusso di inchiostro regolato da una valvola controllata dall'inserimento del cappuccio.
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 23:01, 15 October 2012 | ![]() | 1,159 × 1,704, 3 pages (91 KB) | Piccardi (talk | contribs) | {{PatentInfo |Inventor=John A. Holland |Assignee=John A. Holland |Country=US |ApplicationNum=298582 |ApplicationDate=1883-04-16 |PatentNum=298582 |PatentDate=1884-05-13 |PriorityDate=1883-04-16 |Titolo=Fountain-pen |Marca=Holland |Descrizione=Stilograf... |
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