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Patent:US1317604
| Patent: | US 1317604 |
| Title: | Calculating machine |
| Date: | 30.09.1919 |
| Place: | St. Louis |
| Country: | USA |
| Person: | Thieme, Otto (P) |
| Company: | Moon-Hopkins (P) Billing Machine Co. |
| Internal Links: | |
| Keywords: | |
| Link to the patent office: (without guarantee) |  US1317604 (espacenet), US1317604 (uspto) |
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