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Patent:US2186642
| Patent: | US 2186642 |
| Title: | Typewriting-calculating machine or the like with total-taking mechanism |
| Date: | 09.01.1940 |
| Place: | Zella-Mehlis |
| Country: | USA |
| Person: | Kämmel, Hugo Ernst |
| Company: | Mercedes (P) Büromaschinen-Werke AG |
| Internal Links: | |
| Keywords: | |
| Link to the patent office: (without guarantee) |  US2186642 (espacenet), US2186642 (uspto) |
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