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Patent:US2175621
| Patent: | US 2175621 |
| Title: | Totalizer for counting machines |
| Date: | 10.10.1939 |
| Place: | West Hartford, CT |
| Country: | USA |
| Person: | Anton Van Veen |
| Company: | Denominator Comp. |
| Internal Links: | |
| Keywords: | |
| Link to the patent office: (without guarantee) |  US2175621 (espacenet), US2175621 (uspto) |
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