DEVICE FOR CAVING-IN ROOFS OF LOOSE MATERIALS IN HOPPER,申请号SU19792786048-传众专利搜索

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发明名称	DEVICE FOR CAVING-IN ROOFS OF LOOSE MATERIALS IN HOPPER
摘要
申请公布号	SU821319(A1)	申请公布日期	1981.04.15
申请号	SU19792786048	申请日期	1979.06.13
申请人	FIRSOV SERGEJ K,SU	发明人	FIRSOV SERGEJ K,SU
分类号	B65D88/64;(IPC1-7):B65D88/64	主分类号	B65D88/64
代理机构		代理人
主权项
地址

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