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Patent:US1430212
| Patent: | US 1430212 |
| Title: | Calendar |
| Date: | 26.09.1922 |
| Place: | |
| Country: | USA |
| Person: | Brabant, Lewis |
| Company: | |
| Internal Links: | Datumsrechner |
| Keywords: | |
| Link to the patent office: (without guarantee) |  US1430212 (espacenet), US1430212 (uspto) |
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