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发明名称
Jar
摘要
申请公布号
US2122751(A)
申请公布日期
1938.07.05
申请号
US19350047991
申请日期
1935.11.02
申请人
HALLIBURTON OIL WELL CEMENTING COMPANY
发明人
PHIPPS JOHN T.
分类号
E21B31/107
主分类号
E21B31/107
代理机构
代理人
主权项
地址
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