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Patent:DE834291
| Patent: | DE 834291 |
| Title: | Rechenscheibe |
| Date: | 26.02.1950 |
| Place: | Lunéville, Meurte-et-Moselle |
| Country: | Germany |
| Person: | André Hanhart |
| Company: | |
| Internal Links: | |
| Keywords: | |
| Link to the patent office: (without guarantee) |  DE834291 |
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