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Patent:US3465611
| Patent: | US 3465611 |
| Title: | Dual totaling mechanism for adding machines |
| Date: | 09.09.1969 |
| Place: | Sayama-shi und Tokyo |
| Country: | USA |
| Person: | Yoshiyuki Nakazima Ken Kozasa |
| Company: | Citizen (P) Watch Co. |
| Internal Links: | |
| Keywords: | |
| Link to the patent office: (without guarantee) |  US3465611 (espacenet), US3465611 (uspto) |
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