Patent:DE53945
Patent: | DE 53945 |
Title: | Rechenmaschine |
Date: | 10.01.1890 |
Place: | Gablonz, Böhmen |
Country: | Germany |
Person: | Hübner, A. |
Company: | |
Internal Links: | Lehrmittel |
Keywords: | Abakus |
Link to the patent office: (without guarantee) | ![]() |

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Patent: | DE 53945 |
Title: | Rechenmaschine |
Date: | 10.01.1890 |
Place: | Gablonz, Böhmen |
Country: | Germany |
Person: | Hübner, A. |
Company: | |
Internal Links: | Lehrmittel |
Keywords: | Abakus |
Link to the patent office: (without guarantee) | ![]() |