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发明名称
摘要
申请公布号
JPS5340941(Y2)
申请公布日期
1978.10.03
申请号
JP19710043456U
申请日期
1971.05.26
申请人
发明人
分类号
F16L3/08;D06F39/08;D06F39/12;F16L3/00;(IPC1-7):D06F39/12
主分类号
F16L3/08
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