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发明名称
摘要
申请公布号
JPS42195(Y1)
申请公布日期
1967.01.09
申请号
JP19640083555U
申请日期
1964.10.27
申请人
发明人
分类号
G03B1/56;(IPC1-7):G03B1/56
主分类号
G03B1/56
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代理人
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