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经营范围
发明名称
Injection valve
摘要
申请公布号
GB9927811(D0)
申请公布日期
2000.01.26
申请号
GB19990027811
申请日期
1999.11.25
申请人
BAKER HUGHES INCORPORATED
发明人
分类号
E21B34/00;E21B34/10
主分类号
E21B34/00
代理机构
代理人
主权项
地址
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