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发明名称
摘要
申请公布号
JPS4965870(U)
申请公布日期
1974.06.08
申请号
JP19720110686U
申请日期
1972.09.22
申请人
发明人
分类号
F16L21/02;F16J15/06;(IPC1-7):F16J15/06
主分类号
F16L21/02
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