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Patent:US1426829
| Patent: | US 1426829 |
| Title: | Calculating Device |
| Date: | 22.08.1922 |
| Place: | |
| Country: | USA |
| Person: | G. R. Flynn |
| Company: | |
| Internal Links: | |
| Keywords: | |
| Link to the patent office: (without guarantee) |  US1426829 (espacenet), US1426829 (uspto) |
Aus der Patentschrift US1426829
- DATUM: 22.08.1922
- TITEL: Calculating device