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摘要
申请公布号
JPH0284079(U)
申请公布日期
1990.06.29
申请号
JP19880162900U
申请日期
1988.12.15
申请人
发明人
分类号
F16K31/122;F16K31/42;(IPC1-7):F16K31/42
主分类号
F16K31/122
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