|
| US3955283 | 31 oct. 1974 | 11 mai 1976 | | Flexible handpiece mounted control for dental drills |
| US3959883 | 23 juil. 1973 | 1 juin 1976 | | Hand control system for power hand tools |
| US5344317 | 6 mai 1992 | 6 sept. 1994 | Braun Aktiengesellschaft | Electrically powered appliance for oral hygiene |
| US7476101 | 12 mai 2006 | 13 janv. 2009 | Pro-Dex, Inc. | Dental handpiece with removable apex finding electrode |
| US7488173 | 22 févr. 2006 | 10 févr. 2009 | | Instrument with pressure sensing capabilities |
| USD251304 | 1 avr. 1977 | 13 mars 1979 | Micro-Mega S.A. | Dental handpiece |
