Patent:GB155329
Patent: | GB 155329 |
Titel: | Improvements in and relating to methods of summation in card |
Datum: | 14.12.1920 |
Ort: | |
Land: | Großbritannien |
Person: | Charles Henry Tallmadge |
Firma: | |
Links im Rechnerlexikon: | |
Schlagworte: | |
Link zum Patentamt: (ohne Garantie) | ![]() |
- DATUM: 14.12.1920
- TITEL: Improvements in and relating to methods of summation in card tabulating and statistic-compiling machines
- PERSON: CHARLES HENRY TALLMADGE