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发明名称
摘要
申请公布号
JPS5734511(Y2)
申请公布日期
1982.07.30
申请号
JP19740055338U
申请日期
1974.05.14
申请人
发明人
分类号
G03B27/52;G03G15/00;G03G15/04;G03G21/00;G03G21/10;(IPC1-7):G03G15/04
主分类号
G03B27/52
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代理人
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