DEEP SHAFT AND ITS OPERATION,申请号JP19890338070-传众专利搜索

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发明名称	DEEP SHAFT AND ITS OPERATION
摘要
申请公布号	JPH03202200(A)	申请公布日期	1991.09.03
申请号	JP19890338070	申请日期	1989.12.28
申请人	NKK CORP	发明人	ODA SHUNJI
分类号	C02F3/22	主分类号	C02F3/22
代理机构		代理人
主权项
地址

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