Graflex Inc
Graflex InActive Patents
0
Total Holdings
5
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| US3476029A | Electrochromic shutter system | Expired / Lapsed | 1967-08-16 | 1969-11-04 | 0 | Details |
| US2745051A | Battery-capacitor cartridge for photographic flash unit | Expired / Lapsed | 1955-01-21 | 1956-05-08 | 0 | Details |
| US2664795A | Photographic flash lighting and synchronizing system | Expired / Lapsed | 1950-04-29 | 1954-01-05 | 0 | Details |
| US2589720A | Electronic device | Expired / Lapsed | 1950-10-18 | 1952-03-18 | 0 | Details |
| US2424176A | Portrait camera with automatic iris diaphragm operation | Expired / Lapsed | 1946-01-23 | 1947-07-15 | 0 | Details |