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Patent:GB169794
| Patent: | GB 169794 |
| Title: | Improvemens in or relating to Calculating-machines |
| Date: | 03.10.1921 |
| Place: | Detroit |
| Country: | Great Britain |
| Person: | |
| Company: | Burroughs (P) Adding Machine Comp. |
| Internal Links: | |
| Keywords: | |
| Link to the patent office: (without guarantee) |  GB169794 |
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