Echo pour la personne qui parle sur les communications internationales |
|
Citation: |
https://handle.itu.int/11.1002/1000/3573 |
Series title: |
|
Approval date: |
1984-10-19 |
Approval process: | WTSA |
Status: |
Superseded |
Maintenance responsibility: |
|
Further details: |
Patent statement(s)
|
|
|
|