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Patent:DE669288
| Patent: | DE 669288 |
| Title: | Planimeter und Verfahren zur Ausführung von Flächenmessungen |
| Date: | 08.10.1935 |
| Place: | New York |
| Country: | Germany |
| Person: | |
| Company: | Aerial Explorations Inc. |
| Internal Links: | |
| Keywords: | |
| Link to the patent office: (without guarantee) |  DE669288 |
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