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发明名称
摘要
申请公布号
JPS5550392(U)
申请公布日期
1980.04.02
申请号
JP19780134413U
申请日期
1978.09.29
申请人
发明人
分类号
F16L41/00;F15D1/00;F15D1/02;F16L55/04;(IPC1-7):F16L41/00
主分类号
F16L41/00
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