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发明名称
Audiometer
摘要
申请公布号
US2229206(A)
申请公布日期
1941.01.21
申请号
US19390271573
申请日期
1939.05.03
申请人
AUREX CORPORATION
发明人
CUBERT JOSEPH R.
分类号
A61B5/12
主分类号
A61B5/12
代理机构
代理人
主权项
地址
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