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Patent:US2373671
| Patent: | US 2373671 |
| Title: | Calculator |
| Date: | 17.04.1945 |
| Place: | |
| Country: | USA |
| Person: | R. N. Feicht |
| Company: | |
| Internal Links: | |
| Keywords: | |
| Link to the patent office: (without guarantee) |  US2373671 (espacenet), US2373671 (uspto) |
Aus der Patentschrift US2373671
- DATUM: 17.04.1945
- TITEL: Calculator