File:Patent-US-2473689.pdf
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Dettagli
| Inventor |
Charles N. Colstad |
|---|---|
| Assignee |
W. A. Sheaffer Pen Company |
| Country |
US |
| Application N° |
574355 |
| Application Date |
1945-01-24 |
| Patent N° |
2473689 |
| Brevettato |
1949-06-21 |
| Priorità |
1945-01-24 |
| Brand | |
| Title |
Clip for writing instruments |
| Description |
Fermaglio a molla |
Riferimenti esterni
Informazioni
Brevetto un fermaglio a molla. Riferimenti a nº US-1085174, nº US-1180915 e nº US-2237155.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 17:43, 15 July 2012 |  | 1,159 × 1,704, 4 pages (213 KB) | Piccardi (talk | contribs) | {{PatentInfo |Inventor=Charles N. Colstad |Assignee=W. A. Sheaffer Pen Company |Country=US |ApplicationNum=574355 |ApplicationDate=1945-01-24 |PatentNum=2473689 |PatentDate=1949-06-21 |PriorityDate=1945-01-24 |Titolo=Clip for writing instruments |Marca... |
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