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发明名称
Hydraulisk br÷nnsikkerhetsventil
摘要
申请公布号
NO303184(B1)
申请公布日期
1998.06.08
申请号
NO19920002481
申请日期
1992.06.23
申请人
CAMCO INTERNATIONAL INC
发明人
LEISMER, DWAYNE D.
分类号
E21B34/00;E21B34/10;(IPC1-7):E21B34/10
主分类号
E21B34/00
代理机构
代理人
主权项
地址
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