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发明名称
摘要
申请公布号
JPS5478921(U)
申请公布日期
1979.06.05
申请号
JP19770151106U
申请日期
1977.11.12
申请人
发明人
分类号
F16L17/00;F16L17/02;(IPC1-7):F16L17/02
主分类号
F16L17/00
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