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发明名称
摘要
申请公布号
JPS539734(B2)
申请公布日期
1978.04.07
申请号
JP19730018735
申请日期
1973.02.15
申请人
发明人
分类号
G11B5/193;G11B5/187;G11B5/29
主分类号
G11B5/193
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