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发明名称
摘要
申请公布号
JPS5716941(Y2)
申请公布日期
1982.04.08
申请号
JP19770068032U
申请日期
1977.05.26
申请人
发明人
分类号
E03D3/04;E03D3/00;E03D5/10;F16K31/02;F16K31/06;(IPC1-7):E03D5/10
主分类号
E03D3/04
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代理人
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