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| US4484891 | 6 okt 1982 | 27 nov 1984 | Syntex (U.S.A.) Inc. | Vibratory endodontic device |
| US4571183 | 18 aug 1983 | 18 feb 1986 | Syntex (U.S.A.) Inc. | Vibratory endodontic device |
| US4820153 | 4 nov 1986 | 11 apr 1989 | Ludwig Romhild
Peter Reinhard | Process and apparatus for cleaning a tooth |
| US5851111 | 23 jun 1997 | 22 dec 1998 | | Equine dental float adapter |
