Lignes Telegraphiques et Telephoniques LTT SA
Lignes TelActive Patents
0
Total Holdings
9
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| FR2556480A1 | Active optical bi-directional coupler | Expired / Lapsed | 1983-12-09 | — | 0 | Details |
| GB1533426A | Inhibiting circuit for an obstacle detector | Expired / Lapsed | 1976-01-21 | — | 0 | Details |
| US3754237A | Communication system using binary to multi-level and multi-… | Expired / Lapsed | 1972-03-02 | 1973-08-21 | 5 | Details |
| US3601543A | Time division data transmission system | Expired / Lapsed | 1970-03-17 | 1971-08-24 | 11 | Details |
| US3569955A | Method and devices for converting coded binary signals into… | Expired / Lapsed | 1968-10-11 | 1971-03-09 | 8 | Details |
| US3430206A | Control systems for constant proportion mixtures | Expired / Lapsed | 1966-04-26 | 1969-02-25 | 0 | Details |
| US3284616A | Memory devices for storing the peak, instantaneous or integ… | Expired / Lapsed | 1962-10-26 | 1966-11-08 | 2 | Details |
| US3275955A | Dielectric-metal waveguide | Expired / Lapsed | 1964-07-15 | 1966-09-27 | 4 | Details |
| FR839805A | Improvements to mechanical filters | Expired / Lapsed | 1938-06-24 | 1939-04-13 | 0 | Details |