Patent:GB143964
Patent: | GB 143964 |
Titel: | Improvements in and relating to calculating devices of the slide rule type |
Datum: | 01.06.1920 |
Ort: | |
Land: | Großbritannien |
Person: | Oswald, George Winzar (P) |
Firma: | |
Links im Rechnerlexikon: | Rechenschieber, Rechenrost |
Schlagworte: | |
Link zum Patentamt: (ohne Garantie) | GB143964 |
- DATUM: 01.06.1920
- TITEL: Improvements in and relating to calculating devices of the slide rule type
- PERSON: OSWALD GEORGE WINZAR