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发明名称
WELL CASING PERFORATING APPARATUS
摘要
申请公布号
CA362059(A)
申请公布日期
1936.11.24
申请号
CAD362059
申请日期
申请人
THE SHELL DEVELOPMENT COMPANY
发明人
GOTTFRIED PRIKEL
分类号
主分类号
代理机构
代理人
主权项
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