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经营范围
发明名称
摘要
申请公布号
JPS639196(Y2)
申请公布日期
1988.03.18
申请号
JP19820066212U
申请日期
1982.05.07
申请人
发明人
分类号
H04R9/00;H04R1/30;(IPC1-7):H04R1/30
主分类号
H04R9/00
代理机构
代理人
主权项
地址
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