Headset earmuff
USD342071S · kind S · design
16Cited by
13References
1Claims
0Family size
Inventors
Key dates
| Filing date | Nov 6, 1991 |
| Grant date | Dec 7, 1993 |
| Priority date | — |
| Expiry date | Dec 7, 2007 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.