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发明名称
摘要
申请公布号
JPH02728(Y2)
申请公布日期
1990.01.10
申请号
JP19830010246U
申请日期
1983.01.26
申请人
发明人
分类号
G02B7/08;(IPC1-7):G02B7/08
主分类号
G02B7/08
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