METHOD OF EVALUATING EFFICIENCY OF PROTECTIVE ZONE IN COAL SLICE EDGE PORTION,申请号SU19884603527-传众专利搜索

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发明名称	METHOD OF EVALUATING EFFICIENCY OF PROTECTIVE ZONE IN COAL SLICE EDGE PORTION
摘要
申请公布号	RU1793061(C)	申请公布日期	1993.02.07
申请号	SU19884603527	申请日期	1988.11.09
申请人	VNII GORNOJ GEOMEKHANIKI MARK	发明人	PROSKURYAKOV VLADIMIR M,SU;FRID VLADIMIR I,SU;SKAKUN ANATOLIJ P,SU;SHABAROV ARKADIJ N,SU;PUSHCHANSKIJ VALERIJ G,SU;BURAKOV VALERIJ N,SU
分类号	E21F5/00;E21C39/00	主分类号	E21F5/00
代理机构		代理人
主权项
地址

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