From the great encyclopedia of mechanical calculating
Patent: | CH 125513 |
Title: | Rechenmaschine mit einem Tastensatz. |
Date: | 16.04.1928 |
Place: | Schweiz |
Country: | Switzerland |
Person: | Jost, Ernst (P) |
Company: | |
Internal Links: | |
Keywords: | |
Link to the patent office: (without guarantee) | ![]() |
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