Perforating method and apparatus,申请号US19410382249-传众专利搜索

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发明名称	Perforating method and apparatus
摘要
申请公布号	US2340966(A)	申请公布日期	1944.02.08
申请号	US19410382249	申请日期	1941.03.07
申请人	PHILLIPS PETROLEUM COMPANY	发明人	KITSMAN WILLIAM L.
分类号	E21B43/1185;E21B43/119	主分类号	E21B43/1185
代理机构		代理人
主权项
地址

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