Title:
Diagnostic audiometer
United States Patent 3222456
Inventors:
Abraham, Hyman
Publication Date:
12/07/1965
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Assignee:
Abraham, Hyman
Primary Class:
73/585
International Classes:
A61B5/12
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US Patent References:
3091234N/A
2848539Audiometer
2753397Audiometer and method of audiometry
2232779Method for testing bone conduction