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Elektroakustika. Meranie charakteristických akustických údajov sluchových protéz na ľudskom uchu. Zmena A1 (Norma na priame používanie ako STN).
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STANDARD published on 1.5.2025
| Availability | Sold out |
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Designation standards: STN EN 61669:2002/A1
Classification mark: 368860
Note: Change
Publication date standards: 1.5.2025
SKU: NS-1219686
Approximate weight : 300 g (0.66 lbs)
Country: Slovak technical standard
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