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发明名称
摘要
申请公布号
JPS52132323(U)
申请公布日期
1977.10.07
申请号
JP19760041187U
申请日期
1976.04.02
申请人
发明人
分类号
F16L47/06;F16L3/00;(IPC1-7):F16L47/06
主分类号
F16L47/06
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