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发明名称
摘要
申请公布号
JPH049499(Y2)
申请公布日期
1992.03.10
申请号
JP19880149686U
申请日期
1988.11.18
申请人
发明人
分类号
G01F13/00;F16K17/34;(IPC1-7):F16K17/34
主分类号
G01F13/00
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