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发明名称
摘要
申请公布号
JPS5415464(U)
申请公布日期
1979.01.31
申请号
JP19770089586U
申请日期
1977.07.05
申请人
发明人
分类号
F16L37/12;B67D3/02;E03C1/042;F16K21/04;F16L37/00;(IPC1-7):E03C1/042
主分类号
F16L37/12
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