SPRAG,PARTICULARLY FOR ARC LINING WITH TROUGH PROFILE,申请号PL19870265992-传众专利搜索

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发明名称	SPRAG,PARTICULARLY FOR ARC LINING WITH TROUGH PROFILE
摘要
申请公布号	PL265992(A1)	申请公布日期	1988.06.09
申请号	PL19870265992	申请日期	1987.05.28
申请人		发明人
分类号	E21D;E21D11/28;(IPC1-7):E21D/	主分类号	E21D
代理机构		代理人
主权项
地址

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