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发明名称
Apparatus for detecting leaks
摘要
申请公布号
US2701960(A)
申请公布日期
1955.02.15
申请号
US19510228093
申请日期
1951.05.24
申请人
IRWIN EMMETT M
发明人
IRWIN EMMETT M.
分类号
E21B47/10
主分类号
E21B47/10
代理机构
代理人
主权项
地址
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