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发明名称
摘要
申请公布号
JPS50761(B1)
申请公布日期
1975.01.11
申请号
JP19700101622
申请日期
1970.11.17
申请人
发明人
分类号
G11B15/02;G11B15/087
主分类号
G11B15/02
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代理人
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地址
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