Clamp for use in dentistry
US4661063A · kind A · utility
13Cited by
1References
1Claims
0Family size
Inventor
Key dates
| Filing date | Oct 3, 1985 |
| Grant date | Apr 28, 1987 |
| Priority date | — |
| Expiry date | Oct 3, 2005 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61C5/82
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A clamp used for supporting a flexible sheet used in dental operations for isolating teeth has two jaws and a spring in the form of a bridge connecting the jaws, the improvement being that the clamp as a whole is made of a plastics material which is capable of resilient deformation and which is permeable to X-rays, for example polycarbonate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.