METHOD OF AND APPARTUS FOR CONTROLLABLY SHOOTING OFF HARD ROCK AND CONCRETE BY MEANS OF SMALL EXPLOSIVE CHARGES,申请号PL19960327283-传众专利搜索

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发明名称	METHOD OF AND APPARTUS FOR CONTROLLABLY SHOOTING OFF HARD ROCK AND CONCRETE BY MEANS OF SMALL EXPLOSIVE CHARGES
摘要
申请公布号	PL327283(A1)	申请公布日期	1998.12.07
申请号	PL19960327283	申请日期	1996.08.02
申请人	ROCKTEK LTD	发明人	WATSON JOHN DAVID
分类号	E21B43/117;E21C37/16;F42B3/00;F42B3/22;F42D1/00;F42D1/08;F42D3/00;F42D3/04;(IPC1-7):F42B3/00	主分类号	E21B43/117
代理机构		代理人
主权项
地址

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