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发明名称
摘要
申请公布号
JP2549725(Y2)
申请公布日期
1997.09.30
申请号
JP19910033959U
申请日期
1991.04.15
申请人
发明人
分类号
F15B15/28;G01B21/00;(IPC1-7):F15B15/28
主分类号
F15B15/28
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