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Patent:GB190500068
| Patent: | GB 190500068 |
| Title: | Calculating machines |
| Date: | 11.05.1905 |
| Place: | Chicago |
| Country: | Great Britain |
| Person: | Hyman Eli Goldberg |
| Company: | |
| Internal Links: | |
| Keywords: | |
| Link to the patent office: (without guarantee) |  GB190500068 |
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