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Patent:US2554103
| Patent: | US 2554103 |
| Title: | Clearing device in calculating machines |
| Date: | 22.05.1951 |
| Place: | Atvidaberg |
| Country: | USA |
| Person: | Grip, Erik Konrad (P) |
| Company: | AB Åtvidaberg Facit (P) |
| Internal Links: | |
| Keywords: | |
| Link to the patent office: (without guarantee) |  US2554103 (espacenet), US2554103 (uspto) |
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