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发明名称
EXPLOSION COMPENSATOR
摘要
申请公布号
GB2177740(B)
申请公布日期
1988.06.15
申请号
GB19860015904
申请日期
1986.06.30
申请人
* C-E VETCO UK LIMITED
发明人
JAMES NIGEL * SMETHAM;LAZARIS * LAZARI
分类号
E21B29/02;E21B29/12;E21B43/119;F42D5/045;(IPC1-7):E21B29/02
主分类号
E21B29/02
代理机构
代理人
主权项
地址
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