Extraction hood for use in an extraction system to exhaust fumes from a work station
USD332305S · kind S · design
14Cited by
8References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 24, 1990 |
| Grant date | Jan 5, 1993 |
| Priority date | — |
| Expiry date | Jan 5, 2007 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.