Patent:CH109919
Patent: | CH 109919 |
Title: | Rechenmaschine. |
Date: | 01.05.1925 |
Place: | Großbritannien |
Country: | Switzerland |
Person: | |
Company: | |
Internal Links: | |
Keywords: | |
Link to the patent office: (without guarantee) | ![]() |
- DATUM: 01.05.1925
- TITEL: Rechenmaschine.
- PERSON: DEBENHAM ERNEST RIDLEY GB