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Patent:GB838237
| Patent: | GB 838237 |
| Title: | An instrument for measuring areas |
| Date: | 22.06.1960 |
| Place: | |
| Country: | Great Britain |
| Person: | |
| Company: | Adegboye Akinwunmi |
| Internal Links: | Planimeter |
| Keywords: | |
| Link to the patent office: (without guarantee) |  GB838237 |
Aus der Patentschrift GB838237
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