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Patent:US1576575
| Patent: | US 1576575 |
| Title: | Combined typewriting and computing machine |
| Date: | 16.03.1926 |
| Place: | New York |
| Country: | USA |
| Person: | Frederick U. Conard |
| Company: | Underwood (P) Computing Machine Comp. |
| Internal Links: | |
| Keywords: | |
| Link to the patent office: (without guarantee) |  US1576575 (espacenet), US1576575 (uspto) |
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