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发明名称
摘要
申请公布号
JPS474411(Y1)
申请公布日期
1972.02.16
申请号
JP19690042523U
申请日期
1969.05.10
申请人
发明人
分类号
(IPC1-7):F16J15/32;F01L3/08
主分类号
(IPC1-7):F16J15/32
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