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经营范围
发明名称
Grouting valve internal tube
摘要
申请公布号
CZ4467(U1)
申请公布日期
1996.04.17
申请号
CZ19950004712U
申请日期
1995.11.28
申请人
OPELA JIRI ING.;JALUVKA FRANTISEK ING.;SIKORA ROSTISLAV
发明人
OPELA JIRI ING.;JALUVKA FRANTISEK ING.;SIKORA ROSTISLAV
分类号
E21B34/02;E21B34/00;(IPC1-7):E21B034/02;E21B034/00
主分类号
E21B34/02
代理机构
代理人
主权项
地址
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