Patent:GB481801
Patent: | GB 481801 |
Titel: | Improvements in and relating to adding machines having multiple-zero keys |
Datum: | 14.03.1938 |
Ort: | |
Land: | Großbritannien |
Person: | |
Firma: | Underwood (P) Elliott Fisher (P) Co |
Links im Rechnerlexikon: | |
Schlagworte: | |
Link zum Patentamt: (ohne Garantie) | GB481801 |
- DATUM: 14.03.1938
- TITEL: Improvements in and relating to adding machines having multiple-zero keys
- PERSON: UNDERWOOD ELLIOTT FISHER CO