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发明名称
CUT-OFF AND AIR ADMISSION VACUUM VALVE
摘要
申请公布号
PL147851(B1)
申请公布日期
1989.08.31
申请号
PL19860257743
申请日期
1986.01.30
申请人
发明人
分类号
F16K;F16K24/06;F16K51/02;(IPC1-7):F16K51/02
主分类号
F16K
代理机构
代理人
主权项
地址
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