METHOD OF MINING A BODY OF COAL BY BLASTING,申请号PL19910290150-传众专利搜索

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发明名称	METHOD OF MINING A BODY OF COAL BY BLASTING
摘要
申请公布号	PL290150(A1)	申请公布日期	1991.11.04
申请号	PL19910290150	申请日期	1991.05.06
申请人	CUPRUM KOM GORNICZO HUTNICZY M	发明人	LEHMANN JEDRZEJ;BUGAJSKI WITOLD;MAZIK MAREK;SIEWIERSKI STANISLAW;SONNENBERG MICHAL
分类号	E21C37/12;F42D3/00;(IPC1-7):E21C37/12	主分类号	E21C37/12
代理机构		代理人
主权项
地址

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