| 3066672 | Method and apparatus for serial sampling of intestinal juice | 1962-12-04 | ||
| 3060927 | Means for administering oxygen during resuscitation | 1962-10-30 | ||
| 3050062 | Secretion suction device for rescue apparatus | 1962-08-21 | ||
| 3017880 | Resuscitator | 1962-01-23 | ||
| 2575513 | Detachable aspirator | 1951-11-20 |