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Patent:GB410865
| Patent: | GB 410865 |
| Title: | An improved device for use in calculating the values of bets |
| Date: | 31.05.1934 |
| Place: | London |
| Country: | Great Britain |
| Person: | Arnold Leete Attenborough Nicholas Chekanoff |
| Company: | |
| Internal Links: | |
| Keywords: | |
| Link to the patent office: (without guarantee) |  GB410865 |
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