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发明名称
摘要
申请公布号
JPS4711504(Y1)
申请公布日期
1972.04.27
申请号
JP19670081935U
申请日期
1967.09.27
申请人
发明人
分类号
(IPC1-7):G03B21/16
主分类号
(IPC1-7):G03B21/16
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代理人
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地址
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