,申请号JP19850108622U-传众专利搜索

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发明名称
摘要
申请公布号	JPS6216188(U)	申请公布日期	1987.01.30
申请号	JP19850108622U	申请日期	1985.07.16
申请人		发明人
分类号	E21B25/04;(IPC1-7):E21B25/04	主分类号	E21B25/04
代理机构		代理人
主权项
地址

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