FR2425183B1
Stereophonic coder employing a multilevel switching system for the generation of the stereophonic signal
Abstract
This record has no abstract on file.
Term
Term ended
Expired 19 January 1999, 27.7 years ago.
- Priority
- Filed
- Granted
- Expired
- Today
4 priority claims, no other members on record
Priority claims4
| Document | Office | Kind | Date |
|---|---|---|---|
| 6803178 | Italy | A | |
| 6803178 | Italy | A | |
| 06803178 | – | – | – |
| IT19780068031 | – | – | – |
Numbers
- Publication, DOCDB
- 2425183
- Publication, EPODOC
- FR2425183
- Application
- 7901310
- Application, DOCDB
- 7901310
- Application, EPODOC
- FR19790001310
Classification
- CPC, 1
- H04H20/48
- IPC, 2
- H04H1 00
- H04H20 48