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发明名称
摘要
申请公布号
JPH0493814(U)
申请公布日期
1992.08.14
申请号
JP19900405954U
申请日期
1990.12.28
申请人
发明人
分类号
G02B26/02;(IPC1-7):G02B26/02
主分类号
G02B26/02
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