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Patent:US2954924
| Patent: | US 2954924 |
| Title: | Calculating Machines |
| Date: | 04.10.1960 |
| Place: | |
| Country: | USA |
| Person: | Leich et al |
| Company: | Brunsviga (P) |
| Internal Links: | ten-key machine - copending Patent:US2879938, improvement of german patent Patent:US907836 |
| Keywords: | |
| Link to the patent office: (without guarantee) |  US2954924 (espacenet), US2954924 (uspto) |
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