JPS567359B2
Movable coil type electroacoustic vibrating plate
Abstract
This record has no abstract on file.
Term
Term ended
Expired 26 March 1997, 29.5 years ago.
- Priority and filed
- Granted
- Expired
- Today
5 members in 4 offices
Members5
| Document | Office | Kind | |
|---|---|---|---|
| DE2812222A1 | Germany | A1 | |
| JPS53119023A | Japan | A | |
| US4132872A | United States of America | A | |
| JPS567359B2This record | Japan | B2 | |
| GB1586907A | United Kingdom | A |
Numbers
- Application
- 3389477
Classification
- CPC, 2
- H04R7/122
- H04R7/14
- IPC, 2
- H04R7 12
- H04R7 14