Patent:CH252161
Patent: | CH 252161 |
Title: | Machine à calculer munie dun dispositif de rappel des touches. |
Date: | 15.12.1947 |
Place: | Schweiz |
Country: | Switzerland |
Person: | Steinmann, Albert (P) |
Company: | |
Internal Links: | |
Keywords: | |
Link to the patent office: (without guarantee) | ![]() |
- DATUM: 15.12.1947
- TITEL: Machine à calculer munie dun dispositif de rappel des touches.
- PERSON: STEINMANN ALBERT CH