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发明名称
摘要
申请公布号
JPS57113594(U)
申请公布日期
1982.07.14
申请号
JP19810000419U
申请日期
1981.01.06
申请人
发明人
分类号
H04R1/10;A61F11/14;(IPC1-7):H04R1/10;A41D21/00
主分类号
H04R1/10
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代理人
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