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Patent:US2460558
| Patent: | US 2460558 |
| Title: | Slide Rule |
| Date: | 01.02.1949 |
| Place: | |
| Country: | USA |
| Person: | Wiberg, O. A. (P) |
| Company: | |
| Internal Links: | Rechenschieber |
| Keywords: | |
| Link to the patent office: (without guarantee) |  US2460558 (espacenet), US2460558 (uspto) |
Aus der Patentschrift US2460558
- DATUM: 01.02.1949
- TITEL: Slide rule