| 3057356 | Medical cardiac pacemaker | |||
| 3052233 | Cardiac monitor | |||
| 3030946 | N/A | |||
| 3002185 | N/A | |||
| 2854968 | Indicating and signaling device for circulatory systems and the like | |||
| 2848992 | Apparatus for controlling the pulse | |||
| 2368207 | Method of and means for therapeutic treatment |