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发明名称
摘要
申请公布号
JPS6041921(U)
申请公布日期
1985.03.25
申请号
JP19830135016U
申请日期
1983.08.31
申请人
发明人
分类号
G02B7/02;(IPC1-7):G02B7/02
主分类号
G02B7/02
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