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发明名称
摘要
申请公布号
JPS6257932(U)
申请公布日期
1987.04.10
申请号
JP19850149862U
申请日期
1985.09.30
申请人
发明人
分类号
G02B7/02;G11B7/12;(IPC1-7):G11B7/12
主分类号
G02B7/02
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代理人
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