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发明名称
HYDRAULIC MONITOR PROTECTION APPARATUS
摘要
申请公布号
GB2160917(B)
申请公布日期
1987.08.19
申请号
GB19850012954
申请日期
1985.05.22
申请人
* CONOCO INC
发明人
ESTON F * PETRY;KENNETH E * MCBEE II
分类号
E21C25/60;E21C41/18;(IPC1-7):E21C25/60
主分类号
E21C25/60
代理机构
代理人
主权项
地址
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