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发明名称
摘要
申请公布号
JPS4430728(Y1)
申请公布日期
1969.12.18
申请号
JP19670040120U
申请日期
1967.05.09
申请人
发明人
分类号
H04R1/12;H04M1/17;(IPC1-7):H04M1/17
主分类号
H04R1/12
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