هستی شناسی های علمی و فنی: علوم زیستی و بهداشت چهار: Hearing aid neck induction loop, passive

... > Clinical equipment and devices > Medical device > Audiological device > hearing aid > Hearing aid neck induction loop, passive

... > Device > Ear, nose and throat device > Audiological device > hearing aid > Hearing aid neck induction loop, passive

Physical object > Device > Audio and visual equipment > Audiovisual device > Hearing aid neck induction loop, passive

Hearing aid neck induction loop, passive

http://www.irandoc.acir/onto/irandoc/701916004

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Biological Sciences and Healthcare, part 4