P Gossen and Co GmbH
P Gossen aActive Patents
0
Total Holdings
7
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| US3697179A | Light measuring device | Expired / Lapsed | 1971-01-18 | 1972-10-10 | 4 | Details |
| US3418479A | Exposure indication circuit for electronic shutter devices | Expired / Lapsed | 1965-10-07 | 1968-12-24 | 0 | Details |
| US3054928A | Photoelectrically controlled switching device | Expired / Lapsed | 1960-07-07 | 1962-09-18 | 0 | Details |
| US2972282A | Direct reading color temperature meter | Expired / Lapsed | 1957-06-07 | 1961-02-21 | 0 | Details |
| US2923170A | Hand setting device for rotary response mechanisms in photo… | Expired / Lapsed | 1958-11-12 | 1960-02-02 | 0 | Details |
| DE936600C | Color temperature meter with freely selectable measuring ra… | Expired / Lapsed | 1952-09-18 | 1955-12-15 | 0 | Details |
| DE812723C | Measuring device for determining the color character of lig… | Expired / Lapsed | 1950-06-10 | 1951-09-03 | 0 | Details |