Well casing gun perforator,申请号US19470770232-传众专利搜索

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发明名称	Well casing gun perforator
摘要
申请公布号	US2565789(A)	申请公布日期	1951.08.28
申请号	US19470770232	申请日期	1947.08.23
申请人	MCCULLOUGH TOOL COMPANY	发明人	TOW JAMES O.
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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