EDGE FOR FIXING COMPONENTS TO HEAD LINING WITH MINING SECTIONS,ESPECIALLY SPRAGS,申请号PL19870264310-传众专利搜索

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发明名称	EDGE FOR FIXING COMPONENTS TO HEAD LINING WITH MINING SECTIONS,ESPECIALLY SPRAGS
摘要
申请公布号	PL153360(B1)	申请公布日期	1991.04.30
申请号	PL19870264310	申请日期	1987.02.24
申请人		发明人
分类号	E21D;E21D11/00;F16B3/00;(IPC1-7):F16B3/00	主分类号	E21D
代理机构		代理人
主权项
地址

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