DOUBLE ROTARY RING DRILL HEAD AND ROLLED-FILL WALL COLUMN,申请号JP19890015035-传众专利搜索

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发明名称	DOUBLE ROTARY RING DRILL HEAD AND ROLLED-FILL WALL COLUMN
摘要
申请公布号	JPH02197616(A)	申请公布日期	1990.08.06
申请号	JP19890015035	申请日期	1989.01.26
申请人	KUBO SHINTA	发明人	KUBO SHINTA
分类号	E02D3/12	主分类号	E02D3/12
代理机构		代理人
主权项
地址

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