Perforating gun with serial firing means,申请号US19400318297-传众专利搜索

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发明名称	Perforating gun with serial firing means
摘要
申请公布号	US2257271(A)	申请公布日期	1941.09.30
申请号	US19400318297	申请日期	1940.02.10
申请人	MCCULLOUGH IRA J	发明人	MCCULLOUGH IRA J.
分类号	E21B43/116	主分类号	E21B43/116
代理机构		代理人
主权项
地址

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