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发明名称
PURGING-DILUTING METHOD FOR REMOVING GASES
摘要
申请公布号
US3439870(A)
申请公布日期
1969.04.22
申请号
USD3439870
申请日期
1967.05.11
申请人
CHICAGO BRIDGE & IRON CO.
发明人
HELMUT VEDDER
分类号
H01J7/18;(IPC1-7):F04B37/20
主分类号
H01J7/18
代理机构
代理人
主权项
地址
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