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发明名称
摘要
申请公布号
JPS53124702(U)
申请公布日期
1978.10.04
申请号
JP19770029660U
申请日期
1977.03.14
申请人
发明人
分类号
G03B27/16;G03F7/20;(IPC1-7):G03F7/20
主分类号
G03B27/16
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