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发明名称
摘要
申请公布号
JPS4211991(Y1)
申请公布日期
1967.07.05
申请号
JP19650033969U
申请日期
1965.04.30
申请人
发明人
分类号
G04C3/04;(IPC1-7):G04C3/04
主分类号
G04C3/04
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代理人
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