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) | ![]() |