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Telephony for hearing impaired people. Inductive coupling of telephone earphones to hearing aids
STANDARD published on 1.8.1998
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Designation standards: STN ETS 300381
Classification mark: 870381
Catalog number: 72579
Publication date standards: 1.8.1998
SKU: NS-541131
The number of pages: 1
Approximate weight : 3 g (0.01 lbs)
Country: Slovak technical standard
Category: Technical standards STN
Táto norma špecifikuje spôsob elektromagnetickej väzby medzi elektromagnetickým slúchadlom telefónneho prístroja a kompeznačnou pomôckou z hľadiska linearity.
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Latest update: 2025-05-21 (Number of items: 2 201 746)
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