Dental drill
US4634378A · kind A · utility
16Cited by
2References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 12, 1983 |
| Grant date | Jan 6, 1987 |
| Priority date | — |
| Expiry date | Sep 12, 2003 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61C5/42
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The invention relates to a dental drill. According to the invention, the drill has a triple helicoidal flute and progressive pitch, the free spaces between the cutting lips increasing from the tip (3) toward the shank (1) of the drill. Application: dental apparatus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.