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Patent:US2398286
| Patent: | US 2398286 |
| Title: | Calculating Machine |
| Date: | 09.04.1946 |
| Place: | |
| Country: | USA |
| Person: | Carlström, Bengt et al |
| Company: | Facit (P) |
| Internal Links: | |
| Keywords: | |
| Link to the patent office: (without guarantee) |  US2398286 (espacenet), US2398286 (uspto) |
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