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发明名称	MINING FRICTION PROP
摘要
申请公布号	PL353676(A3)	申请公布日期	2003.11.03
申请号	PL20020353676	申请日期	2002.04.29
申请人	GOLA KAZIMIERZ	发明人	GOLA KAZIMIERZ
分类号	E21D15/00	主分类号	E21D15/00
代理机构		代理人
主权项
地址

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