Diagnostic audiometer
United States Patent 3222456
US Patent References:
Method for testing bone conduction
- - 2232779

Audiometer and method of audiometry
- - 2753397

Audiometer
- - 2848539

/3091234.html
- - 3091234


Inventors:
Abraham, Hyman
Publication Date:
12/07/1965
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Assignee:
Abraham, Hyman
Primary Class:
73/585
International Classes:
A61B5/12