MINING MACHINE DRIVE RACK,申请号PL19830242692-传众专利搜索

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发明名称	MINING MACHINE DRIVE RACK
摘要
申请公布号	PL139463(B1)	申请公布日期	1987.01.31
申请号	PL19830242692	申请日期	1983.06.23
申请人		发明人
分类号	E21C;E21C29/02;F16H55/26;(IPC1-7):E21C29/02	主分类号	E21C
代理机构		代理人
主权项
地址

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