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发明名称
摘要
申请公布号
JPS574877(U)
申请公布日期
1982.01.11
申请号
JP19800081121U
申请日期
1980.06.10
申请人
发明人
分类号
G11B33/12;F16B1/02;F16B2/20;H04R1/02;(IPC1-7):H04R1/02;G11B1/00
主分类号
G11B33/12
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代理人
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