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发明名称
摘要
申请公布号
JPS5893917(U)
申请公布日期
1983.06.25
申请号
JP19810189657U
申请日期
1981.12.18
申请人
发明人
分类号
G03B7/00;G02B5/20;G02B7/28;G03B3/00;G03B13/36
主分类号
G03B7/00
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代理人
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