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摘要
申请公布号
JPS5858012(U)
申请公布日期
1983.04.19
申请号
JP19810151549U
申请日期
1981.10.14
申请人
发明人
分类号
H04R1/00;A61B8/00;A61B10/00;G01N29/04;G01S7/52;G01S7/521;(IPC1-7):A61B10/00
主分类号
H04R1/00
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代理人
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