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发明名称
Oil well gusher control regulator
摘要
申请公布号
US1978377(A)
申请公布日期
1934.10.23
申请号
US19330688919
申请日期
1933.09.11
申请人
WALKER HARDIE L
发明人
WALKER HARDIE L.
分类号
E21B33/06
主分类号
E21B33/06
代理机构
代理人
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