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发明名称
摘要
申请公布号
JPS58133124(U)
申请公布日期
1983.09.08
申请号
JP19820028699U
申请日期
1982.03.01
申请人
发明人
分类号
G02C11/06;H04R25/02;(IPC1-7):G02C11/06
主分类号
G02C11/06
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