British Tabulating Machine Co Ltd
British TaActive Patents
0
Total Holdings
11
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| GB688049A | Improvements in or relating to electric data-comparing circ… | Expired / Lapsed | 1950-05-17 | — | 0 | Details |
| GB600896A | Improvements in or relating to calculating machines | Expired / Lapsed | 1946-01-30 | — | 0 | Details |
| GB609502A | Improvements in or relating to counters and number accumula… | Expired / Lapsed | 1945-12-14 | — | 0 | Details |
| US2875336A | Electronic signal delay circuits | Expired / Lapsed | 1956-07-19 | 1959-02-24 | 0 | Details |
| US2810099A | Circuits employing multi-cathode counting tubes | Expired / Lapsed | 1955-12-21 | 1957-10-15 | 0 | Details |
| US2776418A | Data comparing devices | Expired / Lapsed | 1953-08-19 | 1957-01-01 | 0 | Details |
| US2736881A | Data storage device with magnetostrictive read-out | Expired / Lapsed | 1952-04-22 | 1956-02-28 | 0 | Details |
| FR1090208A | Improvements to digital data conversion devices | Expired / Lapsed | 1953-11-03 | 1955-03-29 | 0 | Details |
| US2680819A | Electrical storage device | Expired / Lapsed | 1952-03-28 | 1954-06-08 | 0 | Details |
| US2647689A | Decimal to binary conversion machine | Expired / Lapsed | 1950-11-29 | 1953-08-04 | 0 | Details |
| US2635197A | Electrical apparatus | Expired / Lapsed | 1951-04-26 | 1953-04-14 | 0 | Details |