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发明名称
摘要
申请公布号
JPS5438040(U)
申请公布日期
1979.03.13
申请号
JP19770112110U
申请日期
1977.08.22
申请人
发明人
分类号
G03B9/08;G03B9/36;(IPC1-7):G03B9/08
主分类号
G03B9/08
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代理人
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