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Patent:GB190623241
| Patent: | GB 190623241 |
| Title: | Improvements in Calculating Machines and the like |
| Date: | 21.02.1907 |
| Place: | Hellerup |
| Country: | Great Britain |
| Person: | Vermehren, Johannes (P) |
| Company: | AS Vermehrens Regnemaskiner |
| Internal Links: | |
| Keywords: | |
| Link to the patent office: (without guarantee) |  GB190623241 |
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