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摘要
申请公布号
JPS52136220(U)
申请公布日期
1977.10.17
申请号
JP19760045587U
申请日期
1976.04.12
申请人
发明人
分类号
F16L55/04;F15B1/08;F17C3/00;F17D1/04;F24D3/10;F24F5/00;(IPC1-7):F17D1/04
主分类号
F16L55/04
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