Application de la Recommandation B.4 relative à l'emploi du décibel |
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Citation: |
https://handle.itu.int/11.1002/1000/19 |
Series title: |
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Approval date: |
1972-12-15 |
Approval process: | WTSA |
Status: |
Superseded |
Maintenance responsibility: |
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Further details: |
Patent statement(s)
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