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Patent:US3002683
| Patent: | US 3002683 |
| Title: | Grade averaging computer |
| Date: | 03.10.1961 |
| Place: | Warrensburg, MO |
| Country: | USA |
| Person: | Paul M. Rowland |
| Company: | |
| Internal Links: | |
| Keywords: | |
| Link to the patent office: (without guarantee) |  US3002683 (espacenet), US3002683 (uspto) |
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