FOERFARANDE FOER BORRNING AV TUNNEL OCH BORRMASKIN.,申请号FI19890004560-传众专利搜索

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发明名称	FOERFARANDE FOER BORRNING AV TUNNEL OCH BORRMASKIN.
摘要
申请公布号	FI894560(A0)	申请公布日期	1989.09.27
申请号	FI19890004560	申请日期	1989.09.27
申请人	ILOMAEKI, VALTO	发明人	ILOMAEKI, VALTO
分类号	E21B7/20;E21B19/086;(IPC1-7):E21D/	主分类号	E21B7/20
代理机构		代理人
主权项
地址

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