Improvements in explosive devices for perforating well walls or casings and like operations,申请号GB19480025868-传众专利搜索

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发明名称	Improvements in explosive devices for perforating well walls or casings and like operations
摘要
申请公布号	GB655222(A)	申请公布日期	1951.07.11
申请号	GB19480025868	申请日期	1948.10.04
申请人	E.I. DU PONT DE NEMOURS AND COMPANY	发明人
分类号	E21B43/117;F42B1/02	主分类号	E21B43/117
代理机构		代理人
主权项
地址

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