Pipe microphone device
US6560346B2 · kind B2 · utility
156Cited by
1References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 30, 2001 |
| Grant date | May 6, 2003 |
| Priority date | — |
| Expiry date | Aug 30, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R1/083
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A microphone device having a tube made of an elastic material and a flexible core member having a shape-retaining property located inside the tube.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.