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Patent:GB138097
| Patent: | GB 138097 |
| Title: | Multiplying and Dividing Apparatus |
| Date: | 20.01.1919 |
| Place: | |
| Country: | Great Britain |
| Person: | |
| Company: | Odhner (P) Aktiebolaget |
| Internal Links: | |
| Keywords: | |
| Link to the patent office: (without guarantee) |  GB138097 |
Aus der Patentschrift GB138097