Fritz Hellige und Co GmbH
Fritz HellActive Patents
0
Total Holdings
8
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| US3574305A | Electrode serving for the detection of electrophysiological… | Expired / Lapsed | 1968-09-05 | 1971-04-13 | 8 | Details |
| US3533401A | Apparatus for automatically measuring blood pressure | Expired / Lapsed | 1967-07-27 | 1970-10-13 | 0 | Details |
| US3513850A | Direct current defibrillator with voltage-controlling means | Expired / Lapsed | 1967-07-25 | 1970-05-26 | 0 | Details |
| US3490442A | Electrode with contact-forming suction cup means | Expired / Lapsed | 1967-02-02 | 1970-01-20 | 0 | Details |
| US3478364A | Recorder having distinguishable records | Expired / Lapsed | 1968-07-02 | 1969-11-11 | 0 | Details |
| US3465232A | Power supply unit with shielded transformer | Expired / Lapsed | 1967-03-20 | 1969-09-02 | 0 | Details |
| US3374485A | Calibration apparatus for physiological and biological meas… | Expired / Lapsed | 1966-11-04 | 1968-03-19 | 2 | Details |
| US3090844A | Electrical switching apparatus | Expired / Lapsed | 1960-07-12 | 1963-05-21 | 2 | Details |