File:Patent-US-2513380.pdf
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Dettagli
| Inventor |
Samuel E. Townsend |
|---|---|
| Assignee |
The Esterbrook Pen Company |
| Country |
US |
| Application N° |
733073 |
| Application Date |
1947-03-07 |
| Patent N° |
2513380 |
| Brevettato |
1950-07-04 |
| Priorità |
1947-03-07 |
| Brand | |
| Title |
Writing instrument |
| Description |
Pennino a sfera |
Riferimenti esterni
Informazioni
Brevetto per un pennino realizzato come un cono con una sferetta in cima, funzionante comunque per capillarità. Riferimenti a nº US-1527971, nº US-2149557, nº US-2292381 e nº US-2430023.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 23:03, 6 August 2012 |  | 1,159 × 1,704, 4 pages (281 KB) | Piccardi (talk | contribs) | {{PatentInfo |Inventor=Samuel E. Townsend |Assignee=The Esterbrook Pen Company |Country=US |ApplicationNum=733073 |ApplicationDate=1947-03-07 |PatentNum=2430023 |PatentDate=1950-07-04 |PriorityDate=1947-03-07 |Titolo=Writing instrument |Marca=Esterbroo... |
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