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发明名称
Verfahren zum Foerdern fluessiger Gase durch einen Pumpvorgang
摘要
申请公布号
DE495795(C)
申请公布日期
1930.04.12
申请号
DE1928P059101D
申请日期
1928.11.27
申请人
PIERRE POLARD
发明人
分类号
F17C5/04
主分类号
F17C5/04
代理机构
代理人
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