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发明名称
WELL CASING PERFORATOR
摘要
申请公布号
CA405940(A)
申请公布日期
1942.07.07
申请号
CAD405940
申请日期
申请人
LANE-WELLS COMPANY
发明人
GEORGE FRANKLIN TURECHEK;BEN BARNUM
分类号
主分类号
代理机构
代理人
主权项
地址
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