Patent:GB533586
Patent: | GB 533586 |
Titel: | Improvements in or relating to adding and subtracting mechanisms |
Datum: | 17.02.1941 |
Ort: | |
Land: | Großbritannien |
Person: | Harold Hall Keen |
Firma: | British Tabulating (P) Mach Co Ltd |
Links im Rechnerlexikon: | |
Schlagworte: | |
Link zum Patentamt: (ohne Garantie) | GB533586 |
- DATUM: 17.02.1941
- TITEL: Improvements in or relating to adding and subtracting mechanisms
- PERSON: BRITISH TABULATING MACH CO LTD