Patent:CH271686
Patent: | CH 271686 |
Title: | Rechenhilfsmittel. |
Date: | 15.11.1950 |
Place: | Österreich |
Country: | Switzerland |
Person: | Deutsch, Jacqueline (P) |
Company: | |
Internal Links: | |
Keywords: | |
Link to the patent office: (without guarantee) | ![]() |
- DATUM: 15.11.1950
- TITEL: Rechenhilfsmittel.
- PERSON: DEUTSCH JACQUELINE AT