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Patent:GB189403834
| Patent: | GB 189403834 |
| Title: | An improved money abacus |
| Date: | 24.03.1894 |
| Place: | Bern, Schweiz |
| Country: | Great Britain |
| Person: | Furrer, Alfred (P) |
| Company: | |
| Internal Links: | Kugelrechner; Abakus; Währungsrechner |
| Keywords: | |
| Link to the patent office: (without guarantee) |  GB189403834 |
GB189403834 Figutres