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发明名称
摘要
申请公布号
JPS55168788(U)
申请公布日期
1980.12.04
申请号
JP19790068897U
申请日期
1979.05.24
申请人
发明人
分类号
F16L23/02;F16B19/10;F16B21/00;(IPC1-7):F16L23/02
主分类号
F16L23/02
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