Kelvin Hughes Ltd
Kelvin HugActive Patents
0
Total Holdings
7
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| DE1423996A1 | Device for non-destructive material testing with sound or u… | Expired / Lapsed | 1960-11-05 | — | 0 | Details |
| GB785001A | Improvements in and relating to echo-ranging and the like | Expired / Lapsed | 1955-01-25 | — | 0 | Details |
| US2924886A | Transmitting magnetic compass systems | Expired / Lapsed | 1957-07-30 | 1960-02-16 | 0 | Details |
| US2862818A | Continuous exposure-process-view process with light sealing… | Expired / Lapsed | 1955-05-03 | 1958-12-02 | 5 | Details |
| US2843676A | Means for producing dispersion in electrical oscillations | Expired / Lapsed | 1954-03-04 | 1958-07-15 | 0 | Details |
| US2770966A | Apparatus for non-destructive testing of solid bodies by ac… | Expired / Lapsed | 1952-12-12 | 1956-11-20 | 0 | Details |
| US2588763A | Navigation instrument | Expired / Lapsed | 1948-02-26 | 1952-03-11 | 0 | Details |