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Patent:DE283653
| Patent: | DE 283653 |
| Title: | Rechenwalze mit drehbaren Skalenstäbchen |
| Date: | 18.01.1913 |
| Place: | Uster, Schweiz |
| Country: | Germany |
| Person: | Daemen-Schmid, Heinrich (P) |
| Company: | |
| Internal Links: | |
| Keywords: | |
| Link to the patent office: (without guarantee) |  DE283653 |
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