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发明名称
摘要
申请公布号
JPH04104634(U)
申请公布日期
1992.09.09
申请号
JP19910013550U
申请日期
1991.02.19
申请人
发明人
分类号
G02B7/02;G03B7/099;G03B7/0997
主分类号
G02B7/02
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代理人
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