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发明名称
Method and apparatus for testing hearing
摘要
申请公布号
US3408460(A)
申请公布日期
1968.10.29
申请号
US19670667028
申请日期
1967.08.24
申请人
JOHN A. VICTOREEN
发明人
VICTOREEN JOHN A.
分类号
A61B5/12
主分类号
A61B5/12
代理机构
代理人
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地址
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