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发明名称
摘要
申请公布号
JPH0336575(U)
申请公布日期
1991.04.09
申请号
JP19890097426U
申请日期
1989.08.23
申请人
发明人
分类号
F16K31/44;F16K31/06;F16K31/11;(IPC1-7):F16K31/11
主分类号
F16K31/44
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