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发明名称
APPARATUS FOR SEVERING WELL CASING IN A SUBMARINE ENVIRONMENT
摘要
申请公布号
US3468373(A)
申请公布日期
1969.09.23
申请号
USD3468373
申请日期
1968.01.02
申请人
SAMUEL H. SMITH
发明人
SAMUEL H. SMITH
分类号
E21B29/12;(IPC1-7):E21B29/00;E21B43/11
主分类号
E21B29/12
代理机构
代理人
主权项
地址
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