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UNE 20644:1982
IEC PROVISIONAL REFERENCE COUPLER FOR THE CALIBRATION OF EARPHONES USED IN AUDIOMETRY
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| Publisher | Asociacion Espanola de Normalizacion y Certificacion (AENOR) |
| Publication Date | 10/15/1982 |
| Page Count | 6 |
| EAN | --- |
| ISBN | --- |
| Weight (in grams) | --- |
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UNE 20644:1982
IEC PROVISIONAL REFERENCE COUPLER FOR THE CALIBRATION OF EARPHONES USED IN AUDIOMETRY
15/10/1982
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