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发明名称
摘要
申请公布号
JPH0365140(U)
申请公布日期
1991.06.25
申请号
JP19890127782U
申请日期
1989.10.31
申请人
发明人
分类号
G03B27/52;(IPC1-7):G03B27/52
主分类号
G03B27/52
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