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发明名称
摘要
申请公布号
JPH04109756(U)
申请公布日期
1992.09.22
申请号
JP19910011044U
申请日期
1991.03.04
申请人
发明人
分类号
G03B42/04;(IPC1-7):G03B42/04
主分类号
G03B42/04
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