Australian Standard 1089-1971: Reference Coupler for the Measurement of the Electro-Acoustic Characteristics of Hearing Aid Earphones

Australian Standard 1089-1971: Reference Coupler for the Measurement of the Electro-Acoustic Characteristics of Hearing Aid Earphones

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Product details

  • Paperback | 8 pages
  • Standards Australia
  • Sydney, Australia
  • 0726204641
  • 9780726204647