|
| US4110654 | 23 Jun 1975 | 29 Ago 1978 | Gebr. Loepfe AG | Device for monitoring the travel of yarn-like structures at a textile machine |
| US4540908 | 13 Ago 1984 | 10 Sep 1985 | Motorola, Inc. | Shock absorber for quartz crystals |
| US4577735 | 2 Jul 1984 | 25 Mar 1986 | Motorola, Inc. | Shock absorber for quartz crystal enclosures using multiple contact points to distribute stress |
| US4709359 | 28 Jun 1982 | 24 Nov 1987 | Magnovox Government and Industrial Electronics Company | End weighted reed sound transducer |
| US5068567 | 26 Oct 1990 | 26 Nov 1991 | General Electric Company | Apparatus for increasing the recoverable energy of a piezoelectric bender |
| US6570295 | 30 Ago 2001 | 27 May 2003 | Sick AG | Ultrasound converter |
| US6781285 | 27 Abr 1999 | 24 Ago 2004 | Cymer, Inc. | Packaged strain actuator |