SAFETY AND LIFTING DEVICE FOR CRAWLER UNDERCHASSIS OF MINING MACHINES,申请号PL19870264770-传众专利搜索

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发明名称	SAFETY AND LIFTING DEVICE FOR CRAWLER UNDERCHASSIS OF MINING MACHINES
摘要
申请公布号	PL153694(B1)	申请公布日期	1991.05.31
申请号	PL19870264770	申请日期	1987.03.20
申请人		发明人
分类号	E21D;E21D9/10;(IPC1-7):E21D9/10	主分类号	E21D
代理机构		代理人
主权项
地址

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