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发明名称
Process of freezing a subterranean water-bearing formation
摘要
申请公布号
GB1065256(A)
申请公布日期
1967.04.12
申请号
GB19650029981
申请日期
1965.07.15
申请人
PITTSBURGH PLATE GLASS COMPANY
发明人
分类号
E21B43/28;E21D1/12
主分类号
E21B43/28
代理机构
代理人
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地址
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