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发明名称
IMPROVEMENTS IN AND RELATING TO OILFIELD CONTROLS
摘要
申请公布号
GB9307596(D0)
申请公布日期
1993.06.02
申请号
GB19930007596
申请日期
1993.04.13
申请人
PEARSON ROBERT C.
发明人
分类号
主分类号
代理机构
代理人
主权项
地址
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