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Specification for an artificial mastoid for the calibration of bone vibrators used in hearing aids and audiometers.
STANDARD published on 31.7.1975
Designation standards: BS 4009:1975
Note: WITHDRAWN
Publication date standards: 31.7.1975
SKU: NS-66418
Approximate weight : 300 g (0.66 lbs)
Country: British technical standard
Category: Technical standards BS
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Latest update: 2024-09-27 (Number of items: 2 350 600)
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