Well explosive devices,申请号US19530357589-传众专利搜索

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发明名称	Well explosive devices
摘要
申请公布号	US2919646(A)	申请公布日期	1960.01.05
申请号	US19530357589	申请日期	1953.05.26
申请人	LEWIS FOSTER JAMES	发明人	FOSTER JAMES LEWIS
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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