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发明名称
Verfahren zur Gewinnung nutzbarer, insbesondere oelhaltiger und brennbarer Gase aus unterirdischen Brennstofflagerstaetten
摘要
申请公布号
DE931310(C)
申请公布日期
1955.08.04
申请号
DE1947S026585D
申请日期
1947.12.19
申请人
SVENSKA SKIFFEROLJE AKTIEBOLAGET
发明人
LJUNGSTROEM FREDRIK DR.-ING.
分类号
E21B43/24
主分类号
E21B43/24
代理机构
代理人
主权项
地址
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