Patent:GB349512
Patent: | GB 349512 |
Titel: | Improvements in or relating to punching machines for perforating, and adding the amounts so recorded on, statistical record-cards |
Datum: | 26.05.1931 |
Ort: | |
Land: | Großbritannien |
Person: | |
Firma: | British Tabulating (P) Mach Co Ltd |
Links im Rechnerlexikon: | |
Schlagworte: | |
Link zum Patentamt: (ohne Garantie) | ![]() |
- DATUM: 26.05.1931
- TITEL: Improvements in or relating to punching machines for perforating, and adding the amounts so recorded on, statistical record-cards
- PERSON: BRITISH TABULATING MACH CO LTD
- Patent Family: ( Patent:DE546302, Patent:GB349512, Patent:US1987310 )