DRILLING BODY FOR CONSOLIDATION OF PILE PIT,申请号JP19860192458-传众专利搜索

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发明名称	DRILLING BODY FOR CONSOLIDATION OF PILE PIT
摘要
申请公布号	JPS6241891(A)	申请公布日期	1987.02.23
申请号	JP19860192458	申请日期	1986.08.18
申请人	NIPPON CONCRETE IND CO LTD	发明人	HAYAKAWA TOMOYUKI;NUNOKAWA KOJI
分类号	E21B7/26;E21B17/22	主分类号	E21B7/26
代理机构		代理人
主权项
地址

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