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发明名称
摘要
申请公布号
JPH0350660(U)
申请公布日期
1991.05.16
申请号
JP19890110650U
申请日期
1989.09.21
申请人
发明人
分类号
E03C1/042;E03C1/08;F16K17/04;F16K27/00;(IPC1-7):E03C1/042
主分类号
E03C1/042
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代理人
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