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发明名称
摘要
申请公布号
JPS56123327(U)
申请公布日期
1981.09.19
申请号
JP19800022063U
申请日期
1980.02.22
申请人
发明人
分类号
G03B13/04;G03B13/10;G03B13/14;(IPC1-7):G03B13/04
主分类号
G03B13/04
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代理人
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