Patent:GB349512
Patent: | GB 349512 |
Title: | Improvements in or relating to punching machines for perforating, and adding the amounts so recorded on, statistical record-cards |
Date: | 26.05.1931 |
Place: | |
Country: | Great Britain |
Person: | |
Company: | British Tabulating (P) Mach Co Ltd |
Internal Links: | |
Keywords: | |
Link to the patent office: (without guarantee) | ![]() |
- 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 )