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发明名称
(A) ;METHOD AND APPARATUS FOR PRODUCING GASEOUS OXYGEN BY DOUBLEESTAGE LOWWTEMPERATURE RECTIFICATION OF AIR
摘要
申请公布号
JPS5298695(U)
申请公布日期
1977.07.25
申请号
JP19760005751U
申请日期
1976.01.22
申请人
发明人
分类号
E05C17/60;E05C17/02;(IPC1-7):E05C17/02
主分类号
E05C17/60
代理机构
代理人
主权项
地址
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