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发明名称
摘要
申请公布号
JPH053753(U)
申请公布日期
1993.01.22
申请号
JP19910058451U
申请日期
1991.06.29
申请人
发明人
分类号
F16K31/02;(IPC1-7):F16K31/02
主分类号
F16K31/02
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