DRILLING BUCKET WITH NO BOTTOM COVER FITTED,申请号JP19920181905-传众专利搜索

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发明名称	DRILLING BUCKET WITH NO BOTTOM COVER FITTED
摘要
申请公布号	JPH062475(A)	申请公布日期	1994.01.11
申请号	JP19920181905	申请日期	1992.06.16
申请人	MARUGO KISO KOGYO KK	发明人	HIRANO TOYOO
分类号	E02F3/407;E21B11/00;E21B11/04;(IPC1-7):E21B11/00	主分类号	E02F3/407
代理机构		代理人
主权项
地址

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