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发明名称
VALVE ASSEMBLY FOR THE REMOTE CONTROL OF FLUID FLOW WITH AN AUTOMATIC TIME DELAY
摘要
申请公布号
GB2036131(B)
申请公布日期
1982.11.17
申请号
GB19790035298
申请日期
1979.10.11
申请人
REAY R;RACHUK R
发明人
分类号
E21B21/10;(IPC1-7):E21B21/10
主分类号
E21B21/10
代理机构
代理人
主权项
地址
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