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发明名称
摘要
申请公布号
JPS5692125(U)
申请公布日期
1981.07.22
申请号
JP19790173144U
申请日期
1979.12.13
申请人
发明人
分类号
G03B15/00;G03B19/00;G03B19/02;(IPC1-7):G03B15/00
主分类号
G03B15/00
代理机构
代理人
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