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发明名称
摘要
申请公布号
JPH0179037(U)
申请公布日期
1989.05.26
申请号
JP19870175161U
申请日期
1987.11.17
申请人
发明人
分类号
G03B27/18;G03B27/02;G03D13/00;(IPC1-7):G03B27/18
主分类号
G03B27/18
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