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发明名称
METHOD FOR EXTRACTING A MINE GAS IN AREAS WHICH ARE NOT DIRECTLY INFLUENCED BY MINING
摘要
申请公布号
EP1711684(A1)
申请公布日期
2006.10.18
申请号
EP20050714885
申请日期
2005.01.21
申请人
ADAM, UDO;EHRHARDT, WILHELM;LOOS, JOACHIM
发明人
ADAM, UDO;EHRHARDT, WILHELM;LOOS, JOACHIM
分类号
E21B43/00;E21F7/00
主分类号
E21B43/00
代理机构
代理人
主权项
地址
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