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发明名称
UNTERTAGEVENTILVORRICHTUNG
摘要
申请公布号
AT356919(T)
申请公布日期
2007.04.15
申请号
AT20010972818T
申请日期
2001.09.28
申请人
TENNOY, ANDOR SVEIN;PEDERSEN, BERNT REINHARDT
发明人
TENNOY, ANDOR SVEIN;PEDERSEN, BERNT REINHARDT
分类号
E21B21/10;(IPC1-7):E21B21/10;E21B34/00
主分类号
E21B21/10
代理机构
代理人
主权项
地址
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