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发明名称
摘要
申请公布号
JPS5749236(U)
申请公布日期
1982.03.19
申请号
JP19800127090U
申请日期
1980.09.05
申请人
发明人
分类号
G03B27/72;G03B17/18;G03F7/20;(IPC1-7):G03B27/72
主分类号
G03B27/72
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