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发明名称
Gas-tight closure
摘要
申请公布号
CZ5488(U1)
申请公布日期
1997.03.12
申请号
CZ19960005819U
申请日期
1996.10.04
申请人
TOPGEO BRNO, SPOL. S R.O.
发明人
HOMOLKA PETR ING.;KOMAREK FRANTISEK
分类号
E21B33/129;(IPC1-7):E21B033/129
主分类号
E21B33/129
代理机构
代理人
主权项
地址
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