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经营范围
发明名称
HIGH VACUUM VALVE
摘要
申请公布号
PL130710(B1)
申请公布日期
1984.08.31
申请号
PL19790220888
申请日期
1979.12.29
申请人
发明人
分类号
F16K;F16K1/48;F16K51/02;(IPC1-7):F16K51/02
主分类号
F16K
代理机构
代理人
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