CALCULATING METHOD FOR PERFORATION DIAMETER BLASTING COEFFICIENT VALUE, PERFORATION LENGTH MINIMUM RESISTANCE WIRE LENGTH, PERFORATION INTERVAL LENGTH OF PERFORATION EXPLOSION,申请号JP19930075223-传众专利搜索

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发明名称	CALCULATING METHOD FOR PERFORATION DIAMETER BLASTING COEFFICIENT VALUE, PERFORATION LENGTH MINIMUM RESISTANCE WIRE LENGTH, PERFORATION INTERVAL LENGTH OF PERFORATION EXPLOSION
摘要
申请公布号	JPH06258000(A)	申请公布日期	1994.09.16
申请号	JP19930075223	申请日期	1993.03.09
申请人	NAKAJIMA YASUJI	发明人	NAKAJIMA YASUJI
分类号	E21C37/12;F42D1/00;(IPC1-7):F42D1/00	主分类号	E21C37/12
代理机构		代理人
主权项
地址

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