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发明名称
摘要
申请公布号
JPS4992204(U)
申请公布日期
1974.08.09
申请号
JP19720136610U
申请日期
1972.11.29
申请人
发明人
分类号
G11B15/28;A47C31/02;(IPC1-7):G11B15/28
主分类号
G11B15/28
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