Patent:GB123989
Patent: | GB 123989 |
Title: | Improvements in Calculating Instruments |
Date: | 02.09.1920 |
Place: | |
Country: | Great Britain |
Person: | Poor Charles Lane |
Company: | |
Internal Links: | Analogrechner |
Keywords: | |
Link to the patent office: (without guarantee) | ![]() |
- DATUM: 02.09.1920
- TITEL: Improvements in Calculating Instruments.
- PERSON: POOR CHARLES LANE US