Patent:DE400848
Patent: | DE 400848 |
Title: | Rechenscheibe |
Date: | 23.08.1924 |
Place: | |
Country: | Germany |
Person: | |
Company: | Frappant (P) Akt Ges Fuer Praez S |
Internal Links: | Rechenscheibe |
Keywords: | |
Link to the patent office: (without guarantee) | ![]() |
- DATUM: 23.08.1924
- TITEL: Rechenscheibe
- PERSON: FRAPPANT AKT GES FUER PRAEZ S