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Patent:US1924479
| Patent: | US 1924479 |
| Title: | Score keeping device |
| Date: | 29.08.1933 |
| Place: | Potlatch, ID |
| Country: | USA |
| Person: | Balch, John L. |
| Company: | |
| Internal Links: | |
| Keywords: | |
| Link to the patent office: (without guarantee) |  US1924479 (espacenet), US1924479 (uspto) |
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