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经营范围
发明名称
摘要
申请公布号
JPS5315308(Y2)
申请公布日期
1978.04.22
申请号
JP19720014345U
申请日期
1972.02.02
申请人
发明人
分类号
H04R9/02;H04R9/06;(IPC1-7):H04R9/02
主分类号
H04R9/02
代理机构
代理人
主权项
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