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发明名称
摘要
申请公布号
JPS594231(Y2)
申请公布日期
1984.02.06
申请号
JP19750002077U
申请日期
1974.12.25
申请人
发明人
分类号
F16L19/02;F16L47/00;(IPC1-7):F16L47/00
主分类号
F16L19/02
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