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发明名称
摘要
申请公布号
JPH04502100(A)
申请公布日期
1992.04.09
申请号
JP19900500720
申请日期
1989.12.01
申请人
发明人
分类号
G02B6/44;G02B6/46;G02B6/48;H02G7/02;H02G7/06
主分类号
G02B6/44
代理机构
代理人
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地址
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