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发明名称
摘要
申请公布号
JPS6253120(B2)
申请公布日期
1987.11.09
申请号
JP19810085487
申请日期
1981.06.02
申请人
YAMAGATA KYOSHI
发明人
YAMAGATA KYOSHI
分类号
H04R1/28
主分类号
H04R1/28
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代理人
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