MINING HEAD FOR MINING MACHINES,申请号PL19850253320-传众专利搜索

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发明名称	MINING HEAD FOR MINING MACHINES
摘要
申请公布号	PL147063(B1)	申请公布日期	1989.04.29
申请号	PL19850253320	申请日期	1985.05.10
申请人		发明人
分类号	E21C;E21C25/10;(IPC1-7):E21C25/10	主分类号	E21C
代理机构		代理人
主权项
地址

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