(1) Connecting element for coupling a dentist's drill and hoses with cooling water and compressed air as well as (2) and (3) accessories therefor
USD277232S · kind S · design
1Cited by
7References
1Claims
0Family size
Inventor
Key dates
| Filing date | Nov 24, 1981 |
| Grant date | Jan 15, 1985 |
| Priority date | — |
| Expiry date | Jan 15, 1999 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.