Patent:GB191321915
Patent: | GB 191321915 |
Title: | Improvements in and relating to Calculating Machines |
Date: | 22.01.1914 |
Place: | |
Country: | Great Britain |
Person: | Ehrich, Paul (P) |
Company: | |
Internal Links: | Abakus |
Keywords: | |
Link to the patent office: (without guarantee) | ![]() |
- DATUM: 22.01.1914
- TITEL: Improvements in and relating to Calculating Machines.
- PERSON: EHRICH PAUL DE