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Patent:US2830760
| Patent: | US 2830760 |
| Title: | Computing device |
| Date: | 15.04.1958 |
| Place: | North Sydney |
| Country: | USA |
| Person: | Clifford Harold Gray |
| Company: | |
| Internal Links: | |
| Keywords: | |
| Link to the patent office: (without guarantee) |  US2830760 (espacenet), US2830760 (uspto) |
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