METHOD OF MINERAL EXCAVATION AND SCRAPER PLOUGH,申请号SU19894791718-传众专利搜索

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发明名称	METHOD OF MINERAL EXCAVATION AND SCRAPER PLOUGH
摘要
申请公布号	SU1742480(A1)	申请公布日期	1992.06.23
申请号	SU19894791718	申请日期	1989.10.31
申请人	INST GORNOGO DELA AN KAZAKHSK	发明人	ZHIKHOR EVGENIJ A,SU;MALYUTIN ALEKSEJ S,SU;TAKOEVA RITA A,SU;MALYUTINA ELENA A,SU
分类号	E21C41/18;E21C27/42	主分类号	E21C41/18
代理机构		代理人
主权项
地址

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