Patent:DE399567
Patent: | DE 399567 |
Title: | Rechenvorrichtung |
Date: | 25.12.1923 |
Place: | Berlin |
Country: | Germany |
Person: | |
Company: | Gebr. Wichmann (P) m. b. H. |
Internal Links: | Patent:DE397429 |
Keywords: | |
Link to the patent office: (without guarantee) | ![]() |
Zusatz zu Patent:DE397429
- DATUM: 17.02.1925
- TITEL: Rechenvorrichtung
- PERSON: WICHMANN M B H GEB