File:Patent-US-2430023.pdf
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Dettagli
| Inventor |
Sydney E. Longmaid |
|---|---|
| Assignee |
The Esterbrook Pen Company |
| Country |
US |
| Application N° |
519954 |
| Application Date |
1944-01-27 |
| Patent N° |
2430023 |
| Brevettato |
1947-11-04 |
| Priorità |
1944-01-27 |
| Brand | |
| Title |
Writing implement |
| Description |
Pennino economico |
Riferimenti esterni
Informazioni
Brevetto per un pennino estremamente economico composto da due striscioline di metallo. Riferimenti a nº US-2037699, nº US-2159002, nº US-2159003, nº US-2228250; nº US-776951, nº US-1284525, nº US-1335580, nº US-1917185, nº US-2011516, nº US-2149557, nº US-2252907, nº US-2305287, nº US-2316478, nº US-2316479, nº US-2328116 e nº US-2329996, ed inoltre nº GB-191126585 (introvabile).
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 17:23, 30 June 2012 |  | 1,159 × 1,704, 10 pages (724 KB) | Piccardi (talk | contribs) | {{PatentInfo |Inventor=Sydney E. Longmaid |Assignee=The Esterbrook Pen Company |Country=US |ApplicationNum=519954 |ApplicationDate=1944-01-27 |PatentNum=2430023 |PatentDate=1947-11-04 |PriorityDate=1944-01-27 |Titolo=Writing implement |Marca=Esterbrook... |
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