OPENING FOR CORRECTING DRILLING DIRECTION,申请号JP19820216186-传众专利搜索

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发明名称	OPENING FOR CORRECTING DRILLING DIRECTION
摘要
申请公布号	JPS59106696(A)	申请公布日期	1984.06.20
申请号	JP19820216186	申请日期	1982.12.09
申请人	SUMITOMO KINZOKU KOGYO KK	发明人	IZUMI YUUSUKE;WATANABE TOMOAKI
分类号	E21D9/093;E21D9/06	主分类号	E21D9/093
代理机构		代理人
主权项
地址

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