Patent:DE421642
Patent: | DE 421642 |
Title: | Logarithmische Rechenvorrichtung |
Date: | 16.11.1925 |
Place: | |
Country: | Germany |
Person: | Kienbaum, Walter (P) |
Company: | |
Internal Links: | |
Keywords: | |
Link to the patent office: (without guarantee) | ![]() |
- DATUM: 16.11.1925
- TITEL: Logarithmische Rechenvorrichtung
- PERSON: WALTER KIENBAUM