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发明名称
摘要
申请公布号
JPS5229629(Y1)
申请公布日期
1977.07.06
申请号
JP19740153695U
申请日期
1974.12.18
申请人
发明人
分类号
G03B27/62;G03B27/00;G03B27/32;G03G15/04;(IPC1-7):G03G15/04
主分类号
G03B27/62
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