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发明名称
摘要
申请公布号
JPS4984609(A)
申请公布日期
1974.08.14
申请号
JP19720127562
申请日期
1972.12.19
申请人
发明人
分类号
G11B15/43;F16D49/08;G11B15/10
主分类号
G11B15/43
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代理人
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