|
| US3968459 | 29 janv. 1975 | 6 juil. 1976 | Sperry Rand Corporation | Ultrasonic driver transducer |
| US4184094 | 1 juin 1978 | 15 janv. 1980 | Advanced Diagnostic Research Corporation | Coupling for a focused ultrasonic transducer |
| US4359659 | 21 févr. 1980 | 16 nov. 1982 | Australasian Training Aids (Pty.) Limited | Piezoelectric shock wave detector |
| US6551247 | 7 févr. 2001 | 22 avr. 2003 | Matsushita Electric Industrial Co., Ltd. | Ultrasonic probe |