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Patent:US1263244
| Patent: | US 1263244 |
| Title: | Computing-Machine |
| Date: | 16.04.1918 |
| Place: | Irvin, Pennsylvania, USA |
| Country: | USA |
| Person: | Herring, John L. (P) |
| Company: | |
| Internal Links: | Herring Computing Machine |
| Keywords: | Addierer, Scheiben-Addierer |
| Link to the patent office: (without guarantee) |  US1263244 (espacenet), US1263244 (uspto) |
Aus der Patentschrift US1263244
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