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发明名称
摘要
申请公布号
JPS5291044(U)
申请公布日期
1977.07.07
申请号
JP19750176893U
申请日期
1975.12.28
申请人
发明人
分类号
G03B27/50;G03B27/32;G03B27/54;G03G15/04;G03G15/047;(IPC1-7):G03G15/04
主分类号
G03B27/50
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代理人
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